... stainless steel,aluminum,brass,etc Material Laser cutting,CNC Punching,CNC Bending,Tig Welding,Mig welding,Riveting,Grinding, ... Stamping,Assembing,etc Sirface treatment Laser cutting,CNC Punching,CNC Bending,Tig Welding,Mig welding,Riveting,Grinding,Stamping ... welding machines,Spot welding machines;stamping machines;Rolling machines;Pipe bender;U-shape extrusion presscold press;Cold press; ...