project

index

Test condition

reflectivity

Rmax＜0.8%

5 incident

Friction resistance

Drop angle≥100°

1)The 1000g load is applied to the 10*10mm steel wire with a thickness of 2mm, and the test length is 50mm;
2) selected test points of not less than 3;
3) test times: 2000 times.

hardness

Pencil hardness≥9H

Load 750g; 45 degree angle NIB