PTI, we provide services for producing and selling various sizes of OZE rubber rings, with raw materials for selection including Silicone, EPDM, NBR, CR, NR, VITON (FKM), HNBR, CSM, PTFE, (Hypalon) etc. Suitable for Use in seal or liquid seal O-ring rubber, flexible, good recovery, good compression set, can be used for a long time, not deformed O-ring rubber that we manufacture services with hardness of 40-90 Shore A, there are a variety to choose from. Heat resistant O-ring, oil-resistant O-ring, food grade O-ring, chemical resistant O-ring etc.