... Silicone,Nitrile and Polychloroprene etc. (2)Production range:Rubber O-ring,Rubber Grommet,Rubber Foot,Rubber Bumper,Auto Rubber Part,Rubber ... Nipple,Rubber keypad and other customized rubber parts.(3)Harmless to people's health.Without any harmful substance. (4) ... competitive price with good tensile strength,high elongation,resistance to water,oil,chemical,Ozone resistance,good physical and chemical ...