light galvanized u frame steel beams 1. Material:carbon steel 2.Finish:powder coat,polish,zinc ... wheel, lift platform, garage, hardware, crane partsMaterialcarbon steel, stainless steel, aluminum alloy, copperProcedurewelding,stamping,cutting,punching,bending,grinding,machining,threadingSurface finishingzinc ... , rolling machine and so on. light galvanized u frame steel beams