Imported bridge O-ring imported rubber O-ring due to the different materials, product performance is different. 1) import nbr NBR O-ring, air tightness good, very excellent oil and abrasion resistance, NBR is the most versatile product, also commonly referred to nbrO-ring. 2) Viton (FKM or VITON) import O-ring is one of the most versatile seal products. Since fluorine rubber having various excellent performance, and is widely used in petroleum, chemical, aviation, aerospace and other sectors. Viton FPM has a high temperature resistance, can be used in -40 ℃ ~ 240 ℃ environment. VITON fluorine rubber resistant to strong oxidants, oil, acid, and fluorine rubber can then high vacuum and high altitude environments, but also suitable for oil environment. 3) silicon silicon rubber o-ring has a very wide range of low temperature and high temperature performance (-60 ~ 250 ℃), silicone seal products are widely used in food, household appliances, lighting, medical equipment and other related industries seal, imported silica gel O-ring referred to SIL import O-ring. 4) EPDM o-rings with good ozone resistance, heat resistance and chemical resistance, and EPDM O-rings also have good electrical insulation properties and hot water. Wall top - professional import seal manufacturers to provide products: 1.o-ring, o-ring repair box, star, ring 2.ed ring, c-rings, rubber balls, rubber washer 3. Gasket, Teflon ring, rubber ring seal skeleton 4: TC, TB, VB, VC 5. skeleton dust seal: DKB, GA, RB, EC 6. Polyurethane seal: UHS, UNS, DHS, YXD, YXd , YXA, QYD, QYd, J, JA, JB, FA 7. sliding seal combination: Grameen circle, Manchester seal, wear-oriented band, wear guide ring 8. The pneumatic seal: APA, AGP, APP, PSD, USH, MYA, GLY, UPH, PZ, LBH, PDU, PAR