... 3.Quality: .ISO9001 & ISO14001 CE certified metal stamping part Material: stainless steel 304/ or aluminumProcess: stamping, CNC punching , bending , welding, finish etcUsage ... , Hydraulic press machines, CNC punching machine, Laser cutter, Robot welder 2) Material: All sheet metal (stainless steel, carbon steel, etc), square tube, tube, angle ...