... machining part About usYaopeng was founded in 2005 as a leading manufacturer specializing in various metal parts, including CNC machining, ... 1) Material: Steel, Brass, Copper, Stainless steel, Plastic, Aluminium, POM, Delrin, Titanium Alloy etc.2) Surface treatment:Zinc ... , Sand blasting, Brushing & ploshing etc.3) Our services:Machining, Turning, Milling, Stamping, Casting4) Drawing format.pdf/.dwg/. ...