- Sapphire crystal bevel
- Sapphire ring
- High quality & craftsmanship
- Available custom design & drawing
- Available any coating & metallization
- Vicker hardness: 2000 - 2500 daN/mm2
- Tensile strength: 26 daN/mm2
- Flexural strength: 35 - 39 daN/mm2
Welcome inquiry for any drawing & details.