... including stainless steel parts, carbon steel parts,alloy steel parts, pumps, impellers, flanges, 1. CNC machining parts/investment casting/ ... lost wax casting/precision casting/stainless steel casting/machinery parts.2. Materials: Carbon steel, alloy steel, ... etc.5. These parts are used in machine assembly, valve&pump parts, auto&motorcycle parts, train&railway parts, marine hardware, construction ...