... FPM), Neoprene(CR),Styrene(SBR) ,CR,ACM,PU etc.Application: O ring is widely used in different industries: Auto, Machinery, Electronic, ... Air-conditioner, Sanitary ware and so on.We have O ring tooling 2000sets in house, our products conform to AS568,Metric ... , GB 245201.O ring detail for reference:1. Size : O ring circle diameter (C.D) Minimum0.44mm. O ring outer diameter Maximal 530mm2. ...