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Contact Supplier1.diameter: 100mm
2. N.w.: 500g±20g
3. Color: yellow, blue, green and white 4. Material: tempered optical glass
6.retro reflective angle: 360
7.units hardness: 180+-5
8. Weathering resistance properties: >16280h
9. Best compressive strength: ≥30 ton. Highest impact strength