... :carbon steel,stainless,aluminum alloy 2.Finish:powder coat,zinc plated elevator hardware sheet metal part1. ... ,threadingSurface finishingzinc plating, hot dipped galvanized, powder coat, e-coat, polishing,chrome plated,nickel platedAdvanced equipments2000T hydraulic ... , CNC boring machine, punching machine, Welding robot, powder coat finishing line ,plasma cutting machine, hacksaw cutting machine ...