... huanyu machinery manufacturing co.,ltd.OEM SERVICESServiceDrawings or samples processing/OEM/ODM service providedProduce ProcessDrawings→ mould making →raw casting → sandblasting →rough machining ... finish machining →surface treatment →product checking→ packing →deliveringCasting MaterialCast Iron, Grey Iron, Ductile Iron,Carbon Steel, Stainless steel, Alloy steel, Aluminum, Aluminum alloy ...