... welding made parts for car/ bus AL-8003custom turned parts, custom made metal machine partsMaterialiron or other metal ... Making process: Stamping, deep drawing, bending, punching, threading, welding , tapping, riveting, grindingSurface treatment: Hot galvanized, polishing, ... 2008 , EN15085-2, ISO3834-3 High technique of welding, stamping, bending, coating, injection moldingCompany profile Aolin ...