... zinc, brass, plastic etc.Making process: Stamping, deep drawing, bending, punching, threading, welding , tapping, riveting, grindingSurface treatment: Hot galvanized, polishing ... 's supplier of welding seat base Quality certificat: ISO9000:2008 , EN15085-2, ISO3834-3 High technique of welding, stamping, bending, ... relationship with your company in the near future. custom made metal machine parts