... proofness & heat resistance 3. Hardness: 30~90 shore A Advantages: Material NBR, NR, EPDM, FKM, SBR, Silicone, Neoprene or Customized Size ... , black, any color Hardness Silicone: 20~80 Shore A, Rubber 30~95 Shore A Technics designed by 3D high accuracy, almost ... from there . Anti shock anti slip anti wearable round rubber feet for chair Natural silicone synthetic rubber products manufacturer factory