... , ShanghaiCertificate ISO9001:2008Drawing format PDF, DWG, IGS, STEP, etcWorking process stamping, punching, bending, zinc plating, sandblastingPackaging & Delivery Inner packaging: plastic bag ... deburring machine, etc.4.Making process and Capability Progression die, Stamping, Deep drawing, Bending, Punching, Threading, Welding, Tapping, Riveting, Grinding, CNC ...