... ; 1.Material:steel,aluminium; 2.Powder coating,painting; 3.OEM. We have specialized sheet metal fabrication since 1983, ... Custom sheet metal forming, stamping, bending, welding parts: 1.material:steel,SS,aluminium,copper.2.finish:powder coating,painting, ... Riveting, Grinding,Stamping, Assembling,etc. Surface treatment: Powder coating,Hot galvanized,Painting,Polishing,Brushing,Cataphoresis,Chrome/Zinc ...