生産機械Punching Machine, Dotting and Positioning Machine, Lettering Machine, Brazing Furnace, Automatic Straightening Machine for Drill Bits, Straightening Machine for Drill Bits, Milling Machine for Shaft, Threading Lathe, Lathe for Drill Rod 1, Lathe for Drill Rod 2, Flat Head and Chamfering Machine, Automatic Opening Machine, Cross Opening Machine