... ring is one of the main products in our factory, it is made from Nitrile(NBR), HNBR ,EPDM, Silicone ... , Fluorine(FKM,FPM), Neoprene(CR),Styrene(SBR) ,CR,ACM,PU etc.Application: O ring is widely ... Sanitary ware and so on.We have O ring tooling 2000sets in house, our products conform ... custom rubber parts.Material Nitrile(NBR), HNBR, EPDM,Silicone, Fluorocarbon, SBR, Neoprene(CR),Butyl(IIR),NR ...