... Stainless steel...etc; Typically, metal balls and liners are made of steel, bronze or iron; Non-metallic balls and liners are ... including PHS, POS, SI...T/K, SA...T/K, GIR...DO...series4. Surface treatment: Zinc-plated, Chromium-plated, Phosphate treated, ... tooling...etc;6. Packages: Cartons and pallets Spherical plain bearing series of Ball joint rod ends bearing and Radial spherical plain bearing