... 2. OEM supplied 3. best quality High efficency China supplier colored o ring Rubber o ring seals features: ... Used in faucets, toilets, fittings, pipes, showers and other industry accessories, and auto parts.Material: silicone, NBR, Viton, HNBR, ... to contact me.Best regardslisaSales representativeTianjin Qiantongda Rubber Products Trading Co., Ltd.Add: B-1103,Fanzheng Central Mansion, No.17 ...