... ,aluminum alloy 2.Finish:powder coat,zinc plated elevator hardware sheet metal part1.Strictly quality control by 100% inspection2 ... fabrication, moulds, auto parts, fifth wheel, lift platform, garage, hardware, crane partsMaterialcarbon steel, stainless steel, aluminum alloy, copperProcedurewelding,stamping,cutting ... hacksaw cutting machine, rolling machine and so on. elevator hardware sheet metal part