Heavy steel welding parts Certificate: ISO 9001:2000 Material: iron, stainless steel, carbon ... painting cube .etcFinishing: zinc plating, nickle plating, chrome plating, mirror polished phosphating, polishing, case hardening, carburization hardening, sand blasting, anodizing, ... supply manufacture for all kinds of non-standard steel welding parts, both small and large. Drawing and sample both welcomed ...