... OEM metal machining part About usYaopeng was founded in 2005 as a leading manufacturer specializing in various metal parts, including CNC machining, stamping metal ... , Powder, Passivation, Sand blasting, Brushing & ploshing etc.3) Our services:Machining, Turning, Milling, Stamping, Casting4) Drawing format.pdf/.dwg/.igs./.stp ...