... 3,Material: silicone 4,OEM & ODM warmly welcomed Silicone Sealing Ring:1,Performance: FDA grade, oil resistance, friction resistance, ... washers and gaskets 3,Color: free choice(black, white, green, red, brown, yellow, purple, pink, translucent, clear etc) 4,Certificate ... , pipes, showers and other industry accessories, and auto parts for sealing. 7, Materials: NBR; FKM; Silicone; Viton; EPDM; SBR; ...