... )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, ... , etc.Mechanically protects against the sharp edges of drilled or punched holes for wiring, cable, tubing, piping, hoses, air lines, ...