... )Hardness:30--80 shore A 4)REACH, SGS Silicone rubber parts/rubber gasket Material NBR, NR, EPDM, FKM, SBR, Silicone, ... &Rubber&Plastic Supplier and Manufacturer---FSYOur main products are rubber parts,rubber gasket, rubber seal, silicone keypad,suction cup,gasbag, ... die, etc.Mechanically protects against the sharp edges of drilled or punched holes for wiring, cable, tubing, piping, hoses, air lines, ...