... material, Precision machining, Strict inspection. 2. non-standard, OEM available belt pulley 1. Good quality raw material, Precision machining, Strict inspection. 2 ... -standard items. Product Name: belt pulley Feathures:1. Material: Alloy Steel, Carbon Steel, Stainless Steel, Hardended & Tempered Steel, Cast Iron, Aluminum, Copper, Brass and ...