... 4.SPCC/SECC/AL hot sale decorative filing cabinets description:Material:Cold rolled steel, hot rolled steel, stainless steel, aluminum, copper, etc. Standard/Specification ... . Making process:laser cutting, stamping, CNC bending, punching, welding, riveting, grinding, etc.Surface treatment:Powder coating, hot galvanized, painting, polishing, brushing,chrome ...