... steel 2.Finish:powder coat,polish,zinc plated,acid pickling light galvanized u frame steel beams1.Strictly quality control by ... rules. Main productsmetal fabrication, moulds, auto parts, fifth wheel, lift platform, garage, hardware, crane partsMaterialcarbon steel, stainless steel, aluminum alloy, ... machine, hacksaw cutting machine, rolling machine and so on. light galvanized u frame steel beams