... QC 2.lost wax & lost foam casting 3.OEM service oem aluminium casting engine front cover 1.Strict QC 2. ... ,vibratory grinding,sand blasting,coating,electro plating,power coating,wet painting,chromatin machining service,drilling,tapping and CNC machining, ... guarantee of quality.Spacious workshop , goods putting orderly.Die casting working room---careful testing ,high attention on processing process. ...