... 3.Export to JP 4.ISO9001:2008 Steel machined welding box we are just a factory in Wuxi, China ... :R0.03mm Item Steel machined welding box Material Steel ,Stainless steel, Iron ,Aluminum, Brass and etcMaterial standard DIN ,ASTM, JIS ... to customer specificationsSurface treatment Polishing,galvanized, electroplating, spraying, and painting and so on.Main process Machining,turning,milling,drilling,grinding ...