aluminum casting Copper Cylinder OEM,ODM,Custom Tolerance 0.01mm
Sinoway was established in 2011 and is located in Qingdao, Shandong. It has more than 10 years of experience in metal parts processing services. We specialize in product R&D design, parts processing, assembly packaging, OEM supply chain and other products. The products we have produced include powder metallurgy parts,mechanical machining parts,metal stamping parts,press bending parts,shell

