... as required.2. Surface treatment: powder coating or painting, Surface Oxidizing,metal polishing, dephosphorization,Silkscreen or by request3. ASTM ,AISI,DIN,BS,JIS standard ... different materials, sizes, surface treatments, shapes and sheet metal processing precision as per customers. With profound ... in lots of high-quality metal enclosures, such as distribution box, control box, aluminum box, electric ...