... certified 3.OEM service and agent welcome 4.all SZ heavy duty truck brake parts with high quality control and competitive ... :autocad,solidworks,pro-E,mechanical desktop,CAD CAM4.production process:turning,milling,drilling,lathing,grinding.5.seconday surface operation:anodize,powder ... /A7.port:Qingdao. it will be avaible to our customers' heavy vehicle brake parts