... chrome steel, Stainless steel, Ceramic(ZrO2, Si3N4), Plastic, Carbon steel, etc.Small order are accepted1, Surface ... plated, nickel plated, Chrome plated, Rubber casting, Plastic coated, etc.2, Other waterproof/antirust bearings:Ceramic ... internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, construction machinery, and so on. 6203-RS Plastic Ball Bearing