... ; Tungsten steel, etc. 2. Machining processes: Metal fabrication, machining, welding, forming, shaping, punching, drilling, turning, milling, ... rolling, stamping, deep drawing, bending, spot or seam welding, spinning, forging, sand casting, die casting, investment ... lathe; CNC milling machine; General milling machine; General drilling machine; General planning and grinding machine; CNC turning center; ...