Nylon PA oil, temperature, wear resistance, high compressive strength, good impact resistance, dimensional stability, but poor. -40 To +120 for the manufacture of oriented rings, guide sleeve, the bearing ring, pressure ring, ring, etc.

　　POM POM oil, temperature, wear resistance, high compressive strength, impact resistance, better, have better self-lubricating properties, good dimensional stability, but poor flexure. -40 To +140 for the manufacture of oriented rings, guide sleeve, the bearing ring, pressure ring, ring, etc.

　　Chloroprene rubber CR good performance of anti-aging and salt water. -30 To +160 often used in refrigeration industry (such as fluorine 12), outdoor applications and adhesive industries.

　　Fluorosilicone rubber MFQ or FVMQ good high temperature and low temperature performance. -100 To +350 commonly used in the required oil and fire resistant applications, such as aerospace.

　　Polyurethane PU or AU has very good mechanical properties, deformation is small, high tensile strength, shear strength, crush strength and abrasion resistance are very high. In particular, I used the company imported polyurethane, sealing effect is far more than domestic products, performance and other aspects is almost no difference with imported parts. Resistant to mineral oil and grease, +50 ℃ below the liquid flame-resistant HFA and HFB. Intolerance +50 ℃ above the water, acid, alkali. Hydrolysis polyurethane exception. -30 To +110 commonly used in the manufacture of reciprocating seals in the hydraulic system, such as Y-shaped ring, U-shaped ring, and so on. Widely used in construction machinery, such as loaders, forklifts, bulldozers, excavators, hydraulic cylinder seals.