... sheet metal part 1. Material:carbon steel,stainless,aluminum alloy 2.Finish:powder coat,zinc plated elevator hardware sheet metal ... ,machining,threadingSurface finishingzinc plating, hot dipped galvanized, powder coat, e-coat, polishing,chrome plated,nickel ... powder coat finishing line ,plasma cutting machine, hacksaw cutting machine, rolling machine and so on. elevator hardware sheet metal part ...