... tube, angle steel, aluminium tube3) Surface treatment: kinds of plating (Zinc, Nikel, Chrome, Tin, Ag); Painting, Powder, Anodizing, E-coating ... , Heat treatment, Black oxid; 4) Standard/ specification: OEM service as per customers' requests, with in-house tooling design & fabricating ... , Xianglong will be your excellent choice! metal stamping part(laser cutting part/ stainless steel fabrication)