... Steel Precision Casting/Mining Parts With ISO 9001:2008 Standard and non-standard customized OEMSteel Precision Casting/Mining PartsTiming pulley Standard and non-standard. Material: Carbon Steel ... , Aluminum. Type: MXL, XL, L, H, XH, XXH, T2.5, T5, T10, T20, 3M, 5M, 8M. Surface treatment: High ... welcomed. .Advantage1. Competitive price with good quality 2. Low MOQ (1000pcs is even ...