The Hong Kong Standards And Testing Centre Ltd (STC)

We offer calibration services for assorted electrical products. Our services are professional and reliable. Our calibration services have won a good reputation in the industry.    For electrical products.    Mechanical metrology, thermometry mass and other services.

Calibration Service

SGS HK Ltd

Developing the highest quality electrical and electronic (E&amp;E) goods that are safe and energy efficient is a complex challenge in today’s competitive market. Our holistic Total Solution Services for E&amp;E products, delivered through our global network of accredited testing laboratories, ensure manufacturers and retailers have access to expert support at every stage of the product life cycle – from design, production and regulatory compliance to the import and export of goods. Our services include:   We understand regulations and standards for every product and target market, and we can help you reduce risk, improve efficiency and ensure compliance. Our experts can help you to incorporate critical construction criteria and compliance requirements from the design stage to the end of the product life cycle. Our Total Solution Services enhance market access and encourage growth. 

Electrical & Electronic Products: Total Solution Services

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including: Providing technical support services at different design stagesOffering a full scope of electrical safety testing serviceProviding one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency testOther Electrical Products Safety Test:  A. LED / Laser Light Beam Laser light beam in CD mechanismLED (1st measurement) LED (2nd measurement and onwards in the same sample)LED lamp B. Reliability 1. Vibration (per direction per hour) 2. Temperature / Humidity Treatment (per day) 3. Endurance Test a. Electrical (for the first 5,000 cycles or less) (for each subsequent 1,000 cycles) b. Mechanical (for the first 5,000 cycles or less) (for each subsequent 1,000 cycles)  4. Degrees of Protection Provided by Enclosures (IP code) a. Degree of protection against solid foreign objects b. Degree of protection against ingress of water  C. Component test a. Power switch/ speed control switch b. Dual-volt switch c. Switching mode power supply d. Ozone measurement  D. EMF test  E. Immunity test according to EN60335-1 a. Stand by Mode b. Electronic Protective Circuit c. Stand by Mode + Electronic Protective Circuit  F. WR2 and Fire Inspection Service a. Periodic electrical inspection WR2 in MTR retail shops b. Periodic electrical inspection WR2 in industry, commercial building, residential building: (Visual inspection is needed for each site. It's totally different from "Electrical Safety Testing".) c. Fire inspection service in MTR retail shops 

Other Electrical Products Safety Test

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including:	Providing technical support services at different design stages	Offering a full scope of electrical safety testing service	Providing one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency testInstallation Accessories Safety Test	BS Plug without switch	13A socket outlet without switch	13A socket outlet with switch	2 way BS socket outlet adaptor	Mechanical Switch	Electronic Switch

Installation Accessories Safety Test

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including:	Providing technical support services at different design stages	Offering a full scope of electrical safety testing service	Providing one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency testConsumer Electronics Appliances Safety Test for EN/IEC 60065:	AV Product (less than 50W)	AV Product (more than 50W, less than 300W)	AV Product (more than 300W)	Television set

Consumer Electronics Appliances Safety Test

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including:	Providing technical support services at different design stages	Offering a full scope of electrical safety testing service	Providing one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency testVoltage Regulating Devices Safety Test:	Isolating Transformer	AC/AC Adaptor	AC/DC Adaptor	Switching Power Supply (Single output)	Additional charge for Direct plug-in type: ABR4, EN50075, AS/NZS 3112 Annex J

Voltage Regulating Devices Safety Test

Our Electrical Products Division offers a wide range of services to ensure the safety of office and home appliances, including:	Providing technical support services at different design stages	Offering a full scope of electrical safety testing service	Providing one-stop product safety testing and certification services according to customer specifications and relevant product standards, e.g. screening test for RoHS, tests for PAHs and California Energy Efficiency test.Business Information Equipment Safety Test for EN 60950-1 / IEC 60950-1:	ITE Product (less than 50W)	ITE Product (more than 50W, less than 300W)	ITE Product (more than 300W)	AC/DC adaptors / Switching mode power supply (Single output)

Business Information Equipment Safety Test

STC provides professional and reliable PSE Mark certification services for both Category A and Category B items according to MEIT and the Electrical Appliances &amp; Materials Safety Law. With our one-stop PSE Mark certification services, STC strives to support manufacturers and importers tap into the Japanese market, enhance brand image and product competitiveness in today’s constantly evolving business landscape.   Specified Electrical Appliances &amp; Materials’ (Category A)Mandatory* The 116 items that are under the ‘Specified Electrical Appliances &amp; Materials’ (Category A) are particularly likely to cause potential hazards due to their structures, materials and or usage. Items must receive mandatory conformity assessment by authorized assessment bodies to obtain PSE Mark certification before the product could be sold, manufactured, or imported into Japan. Non-Specified Electrical Appliances &amp; Materials ‘(Category B) The 341 items that are under the ‘Non-Specified Electrical Appliances’ (Category B) may also obtain PSE Mark certification. Manufactures and importers of Category B items who wish to have their product types approved according to MEIT under the Electrical Appliances &amp; Materials Safety Law may submit testing and inspection reports and makes self-declaration to obtain PSE Mark certification.If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact

Japan PSE Mark Certification

STC has been recognized by the China Quality Certification Center (CQC) (No. V-189) for providing professional and reliable testing services for household electronic appliances, including smart toilets. STC’s smart toilet testing services are in accordance with the latest domestic and international standards to assist manufactures in strengthening product competitiveness by meeting safety requirements and consumer performance expectations.   Our Smart Toilet Testing services include: Safety TestingPerformance TestingElectromagnetic Compatibility (EMC) TestingEnergy Efficiency TestingWater Efficiency TestingAntibacterial TestingTesting Standards Household &amp; Similar Electrical Appliances - Electronic Toilets: Energy Efficiency, Water Efficiency &amp; Antibacterial Certification Requirements(CQC64-448160-2018)Safety Requirements for Household Electrical Toilets and Similar Electrical Appliances(GB 4706.53-2008)Electronic Toilet Sanitation(GB/T 34549-2017)Electronic Toilet(GB/T 23131-2008)Safety of Household &amp; Similar Electrical Appliances - Part 2-84: Particular Requirements for Toilets(IEC 60335-2-84)Toilet Cleaning Water(JIS A 4422:2011)Toilet Bowl(JG/T 285-2010)Toilet Seat &amp; Cover(JC/T 764-2008)Smart Toilet(CBMF15-2016)Smart Toilet Seat (JD 0001-2017)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact

Smart Toilet Testing

STC’s product safety testing services covers LVD testing to assist manufacturers in meeting CE Mark requirements.    The LVD covers health and safety risks on electrical products operating with an input or output voltage of between: 50 and 1000 V for alternating current75 and 1500 V for direct currentIt applies to a wide range of electrical equipment including:Household Electrical Appliances(e.g. coffee machines, refrigerators, microwave ovens, etc.)AV Products(e.g. TV sets, radios, video players, etc.)Luminary (Lighting) ProductsIT &amp; Office EquipmentCablesPower Supply UnitsLaser EquipmentElectrical Accessories &amp; certain components(e.g. fuses)Common Electrical Safety Testing Although commonly referred to as electrical safety testing, the actual assessments carried out extend well beyond a product’s electrical characteristics and includes: Electric Shock Hazards TestingEnergy Related Hazards TestingFlammability TestingHeat Related Hazards TestingMechanical Hazards TestingRadiation TestingChemical Hazards TestingAbnormal Operation Testing(faults and failures within the equipment)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact 

Low Voltage Directive (LVD) Testing

Advance Label Ltd

Specializes in printing adhesive labels and paper products for toys, food, household products, consumer goods, and electrical appliances.
Equipped with machines of advanced technology to provide a wide range of services. The plant is managed by experienced professionals to ensure highest quality, safety standards and efficiency.
Belows are the services we provided: 	 Offset Printing 	 Silk Screen Printing 	 Letterpress Printing 	 Digital Printing 	 Pre-press service 	 Folding &amp; Gluing 	 Binding 	 Assembling 	 Perforating 	 Laminating 	 Customized Printing Solution 	 Hot Foil Stamping 	 Embossing / Imbossing 	 Holographic effect 	 Lenticular effect 	 Soft touch effect 	 UL label 	 Eggshell label 	 Multi-layer label 	 Toy sticker 	 Barcode label 	 Scratch-off card 	 Tattoo sticker 	 Puffy sticker 	 Blister sticker 	 Packaging card 	 Packaging box 	 Sticky Memo 	 PVC/PP/PC/PET film 	 Gift &amp; Premium item 	 Paper toys  We also committed to provide the best service and had achieved accreditations including below: 	 Quality System: ISO9001 	 Environmental: ISO14001, FSC 	 Social Responsibility compliance: ICTI 	 G7 	 UL 	 CPSIA 	 FAMA 	 RoHS 	 SVHC  
We are welcomed to any OEM or ODM items which made with paper materials, we have our own pre-press and design team to provide different design solution to you and provide the one-stop printing services.

Please contact us via email info@advancelabel.com.hk for more details.

Printing Service

Hong Kong Council for Testing and Certification

Why should you use Hong Kong’s testing and certification services? High Professional IntegrityGood Intellectual Property ProtectionHigh Technical CompetenceQuick Response to Market NeedsRobust Accreditation System Being Highly Regarded InternationallyA Free Port with Excellent Logistics SupportYou can find more information about Hong Kong’s testing and certification sector from the website of the Hong Kong Council for Testing and Certification (HKCTC): www.hkctc.gov.hk To find quality reports / certificates? Look for the HKAS Accreditation Symbol! All endorsed test reports / certificates issued by Hong Kong Accreditation Service (HKAS) accredited organisations bear the HKAS accreditation symbol with the registration number of the accredited organisations. Wide Recognition of HKAS-Accredited Organisations HKAS' accreditation is recognised in over 100 economies, including all major trading partners of Hong Kong such as the United States, European Union, Mainland China and Japan. Accreditation helps users to identify reliable conformity assessment service providers. You can find service providers accredited by HKAS and their scope of accreditation from the website of HKAS:www.hkas.gov.hk 

Testing and Certification Services for Electrical and Electronic Products

The Hong Kong Standards and Testing Centre provide a full range of professional testing, inspections and certification services according to your own specifications or major international standards.Testing services on product categories:	Chemical, Food &amp; Pharmaceutical Products	Textiles, Footwear, Furniture &amp; Materials	Electrical Products	Toys &amp; Children's Products	Medical Devices​Certification related testing and supporting services:	China Compulsory Certification (CCC)	Europe CE Mark	GCC G-Mark	Hong Kong OFCA Certification	Hong Kong Safety Mark	Japan Safe Goods (SG) Mark	Japan ST Mark	Japan PSE Mark	US CPSIA Certification	US FCC sDoCWe also provide a wide variety of inspection services for major consumer products including garment, toys, bag, footwear, electrical, electronic, watch and clock and sundry products. We also provide factory evaluation and audit services, such as Code of Conduct, Social Audit and LaboratoryAudit.

Testing Inspection Certification Service

The Hong Kong Standards and Testing Centre provide a full range of professional testing, inspections and certification services for customers in Hong Kong, mainland China and the global market.Provide professional testing service.	Full range of professional testing, inspections and certification services.	Suitable for different products, such as chemicals, food, electrical, textile, and others.	Accredited by China National Accreditation Service for Conformity Assessment (CNAS).	Accredited by Federal Communications Commission (FCC).	Accredited by Deutsche Akkreditierungsstelle GmbH (DAkkS).	For customers in Hong Kong, mainland China and the global market.

Professional Testing Service

At STC, we provide energy efficiency evaluation, testing and certification for a wide range of electrical products in accordance to relevant labeling regulations and voluntary labeling standards.  Our Energy Efficiency Testing &amp; Certification services include:  Energy Efficiency Labeling Scheme-Hong Kong(IEC, CIE 84, GB) Compact Fluorescent Lamps(CFLs)(Mandatory*)Televisions (Mandatory*)Household Induction Cookers(Mandatory*)Non-integrated Compact Fluorescent lamps(CFLs)Automatic Electric Rice CookersMicrowave OvensComputersPhotocopiersFax MachinesPrintersMultifunction DevicesEnergy Performance Measure Testing-International &amp; Europe(Directive 2009/125/EC, IEC, EN) DC or AC Supplied Electronic Control Gear for LED modulesMeasurement of Standby Power for household electrical appliancesPower Consumption of audio, video and related equipmentEnergy Efficiency of electric lamps for household useTest Method for Calculating the Energy Efficiency of Single-Voltage External AC-DC Power SuppliesEco-design Requirements for: TelevisionsSimple set-top boxesNon-directional household lampsStandby &amp; off mode electric power consumption of electrical &amp; electronic household &amp; office equipmentNo-load condition electric power consumption and average active efficiency of external power suppliesFluorescent lamps without integrated ballast, for high intensity discharge lamps, &amp; for ballasts &amp; luminaries able to operate such lamps Energy Performance Measure Testing–United States CaliforniaAppliance Efficiency ProgramInternational Electro-technical Commission(IEC 62087)Energy Efficiency of Single-Voltage External AC-DC and AC-AC Power Supplies(USEPA)Energy Efficiency Battery Charger System Test Procedure Version 2.2(ECOS, EPSI)Electro-technical Commission(IEC 62301 &amp; IEC 62087,Title 20 Appliance Efficiency Regulations)Energy Performance Measure Testing– Australia &amp; New Zealand Performance of external power supplies – Test method and energy performance mark(AS/NZS 4665.1)Performance of external power supplies – Minimum energy performance standard requirementsIf you have any further question, please feel free contact us atenquiry@stc.group or visit our website:https://www.stc.group/en/contact 

Energy Efficiency Labeling

Providing technical support services at different design stages.Offering a full scope of electrical safety testing service.Providing one-stop product safety testing and certification services according to customer specifications and relevant product standards, screening test for RoHS, tests for PAHs and California energy efficiency test.Luminaries safety test:	General luminaries.	Emergency lighting/exit sign.	Electronic ballast for fluorescent lamps (independent use).	Electronic ballast for fluorescent/LED lamps (not for independent use).	LED modules.	LED lamps (performance test).	Energy saving lamp.	Energy saving lamp (performance test).

Luminaries Safety Test

Leconcepts Holdings Co Ltd

Over 20 years of experience in the toys , premiums, gifts, garments, household 
    utilities, lightings & costume jewelry industries.   Our facilities are China-based & Vietnam-based, covering the activities of project study,   prototype making, mould-building, plastic injection, plastic rotomolding,   polyresin forming, electrical and electronics, sewing and wood productions.  Pls visit www.leconcepts.biz to see our production facilities and equipment lists.  

Consumer Product Design

 CCC for Toy 
STC is the first non-governmental laboratory in Hong Kong to receive accreditation from Certification and Accreditation Administration of the People&#39;s Republic of China (CNCA) to provide comprehensive China Compulsory Certification (CCC) testing services.
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Our laboratory in Dongguan is the first non-government organization in China to obtain designated CCC testing laboratory status providing full scope CCC toy testing services and CCC testing services for information technology equipment, lighting products, and audio-visual equipment.
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STC provides one-stop CCC and supports services from application and document preparation to type testing and factory inspection to meet all local and oversea CCC needs.
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 The scope of CCC Toy  	 Electrical Toys 	 Plastic Toys 	 Metal Toys 	 Projectile Toys 	 Baby Dolls 	 Children Vehicles&nbsp;   CCC Testing GB Standards  	 China National Toy Safety Standard (GB 6675) 	 Electric Toy Safety (GB 19865)  If you have any further question, please feel free contact us at enquiry@stc.group or visit our website: https://www.stc.group/en/services/detail/ccc-certification-for-toys

China Compulsory Certificate

Although these advertising materials are relatively inexpensive, their manufacturing quality should meet certain standards and regulations set in different markets to ensure that these products are safe for use.  With our technical expertise, STC offers different types of testing services on Gift &amp; Premium items to manufacturers, retailers, suppliers, and distributors.  Our Gift &amp; Premiums Testing services include: Chemical Analysis Azo DyesFormaldehydeLead ContentPhthalatesRelease of NickelFlammability Testing Fabric &amp; Textile MaterialsSoft &amp; Hard ToysMicrobiological Testing Microbial Limit TestAnti-microbial Preservative EffectivenessPhysical &amp; Mechanical Testing Sharp Points &amp; Sharp EdgesSmall Parts &amp; Small BallsMagnetElectrical Safety &amp; EMC Testing Battery-operated ItemRemote Controlled ItemTransformerElectronic GamesInternational Standards Global(ISO 8124)America(ASTM F963)Australian(AS / NZS ISO 8124)Chinese(GB)Europe(EN 71 &amp; REACH)Japanese(JIS)If you have any further question, please feel free contact us or visit our website: https://www.stc.group/en/contact 

Gifts and Premiums Testing

STC's Biocompatibility Testing services for medical devices includes:	Absorbent Incontinence Products  	Adhesives     	Blood Collection &amp; Storage Devices  	Bone Void Fillers  	Central Nervous System Implants	Combination Products 	Contact Lenses   	Dental Implants  	Devices Containing Antimicrobials	Device Raw Materials	Hemodialysis Disposables	Implantable Drug Delivery Devices  	Infusion / transfusion Devices	Intraocular Lenses	Laparoscopes &amp; Endoscopes  	Ocular Implants	Orthodontic Devices	Orthopedic Implants	Ostomy Devices	Reusable Devices	Surgical Gloves	Sutures	Syringes	Urinary Stents	Urologic Catheters	Vascular Catheters	Vascular Grafts	Vascular Stents	Ventricular Assist Devices	Wound Drainage Devices	Wound DressingsCytotoxicity Study Test (3 weeks lead time)	MTT Method(ISO 10993-5)	Agarose Overlay Method(ISO 10993-5 / USP 87)	Filter Diffusion Method(ISO 10993-5)	Direct Contact Method(ISO 10993-5 / USP 87)	MEM Method(USP 87)Irritation &amp; Skin Sensitization Test	Skim Sensitization Study (GPMT / Closed-patch)(ISO 10993-10) (6 - 8 weeks)	Skin Irritation Test(ISO 10993-10) (3 weeks)	Intracutaneous (Intradermal) Reactivity Test(ISO 10993-10 / USP 88)(3 weeks)	Oral Mucosa Irritation Test(ISO 10993-10) (8 - 10 weeks)	Vaginal Irritation Test(ISO 10993-10) (8 - 10 weeks)	Penile Irritation Test(ISO 10993-10) (8 - 10 weeks)	Rectal Irritation Test(ISO 10993-10) (3 months)	Ocular Irritation Test(ISO 10993-10) (3 - 4 weeks)Systemic Toxicity Test	Acute Systemic Toxicity Test(ISO 10993-11 / USP 88) (3 weeks)	Subacute Systemic Toxicity Test (14 days / 28 days)(ISO 10993-11) (6 or 8 weeks)	Subchronic Systemic Toxicity Test (90 days / 180 days)(ISO 10993-11) (5 or 8 months)	Pyrogen Test(ISO 10993-11) (3 weeks)Local Effects after Implantation Test(ISO 10993-6) (at least 4 weeks)	Implantation in Subcutaneous Tissue Test	Implantation in Muscle Test	Implantation in Bone TestInteractions with Blood Test (2 weeks)	Hemolysis Test(ISO 10993-4 / GB)	Hemolysis Test(ASTM F756)	APTT、PT、TT、FIB(ISO 10993-4 / GB)	Platelet Count Test	Complement Test(ISO 10993-4 / GB)	Thrombosis Test(in Vivo / in Vitro)(ISO 10993-4 / GB)Genotoxicity Test (ISO 10993-3)	Ames Test(8 weeks)	Mouse Lymphoma Assay Test(10 weeks)	Chromosome Aberration Test (10 weeks)If you have any further question, please feel free contact us atenquiry@stc.groupor visit our website:https://www.stc.group/en/contact

Biocompatibility Testing Services for Medical Devices

Personal protective equipment (PPE) is intended toprotect the wearer against the risk of health and safety related injuries. From sunglasses and gardening gloves to sport helmets and safety shoes, PPE testing is essential for ensuring that PPE products are reliable and can effectively safeguard the wearer from harm.STC's PPE testing services are in accordance toISO, ASTM, EN, AS/NZS, BS, CSA,andANSI/SAE standards.OurPersonal Protective Equipment (PPE) Testing services include:	Safety Footwear	Protective Gloves	Protective Clothing	Safety GogglesIf you have any further question, please feel free contact us or visit our website.

Personal Protective Equipment (PPE) Testing

Protective Clothing Testing BS EN 14120STC provide full scope of Protective Clothing testing for wrist, palm, kne and elbow protectors for users of roller sports equipment.	Protective Clothing Testing	Innocuousness Testing	Restraubt Testing	Abrasionresistance Testing	Impact strength Testing	Impact performance Testing	Stiffness of wrist protectors TestingIf you have any further question, please feel free contact us at enquiry@stc.group orvisit our website:https://www.stc.group/en/services/detail/sporting-goods

Sport Products Protective Clothing Testing 

 Toys and Children&#39;s Products Testing 
Accreditation: HOKLAS, DAkkS, SASO, CNAS, CCC, HKSI, CE, FCC, Japan Food Sanitation Law, GTTR &amp; ST MARK.
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 	 Age grading assessment. 	 Aging and pre-conditioning. 	 Bacteriological testing. 	 Chemical analysis. 	 Electrical toy safety testing. 	 Electromagnetic compatibility. 	 Flammability testing. 	 Food contact article analysis. 	 Helmet and bicycle testing. 	 Material and product evaluation. 	 Packaging assessment. 	 Performance and reliability testing. 	 Physical and mechanical testing. 	 Transportation testing. 	 Writing instruments and stationeries.&nbsp;  If you have any further question, please feel free contact us at enquiry@stc.group or visit our website: https://www.stc.group/en/services/detail/toys

Children Toys Testing

STC offers state-of-the-art Optics &amp; Environmental Reliability Testing service in accordance to relevant regulatory requirements and standards such as:Safety Testing	Safety of Laser Test(IEC / EN 60825)	Photobiological Safety Test(IEC / EN 62471)US IES Standards	Electrical &amp; Photometric Measurements of Solid-State Lighting Products(IES LM-79)CIE Standards	CIE Standards(CIE 70)	Luminous Intensity Distribution Test(CIE 121)	Photometry and Goniophotometry(CIE 84)	Measurement of Luminous Flux(CIE 117)Environmental Reliability Test &amp; Other Tests	Environmental Simulation Test(IEC / EN 60721)	Environmental Test(IEC / EN 60068-2 series)	IP Code Test(IEC / EN 60529)	Flammability Test(ISO 7176-16, EN 1021-1, EN 1021-2, EN 597-1, EN 597-2, BS 5852, BS 5852-2, BS 7177)If you have any further question, please feel free contact us atenquiry@stc.groupor visit our website:https://www.stc.group/en/contact

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