Manufacturing rubber o ring 1500 size for chooce Small MOQ& Fast delivery ... Electronic, Water facility, Valve accessories, Air-conditioner, Sanitary ware and so on.We have O ring tooling 2000sets in ... Size : O ring circle diameter (C.D) Minimum0.44mm. O ring outer diameter Maximal 530mm2. Color: black, white, yellow, brown, green, blue ... Please feel free contact with us Blue color soft silicone o ring