We have make improved for technical, transmission parts changed into gear wheel motor frequency adjust speed, no noise, no vibration, adjust speed stable freely, drawbench parts adopt by bear in line, dia 25 bearing steel shaft, used life for three years in order to install drawbench location, at same time reaserch and development fork plate annealing furnace improve cleaning of body ampoule , auto packing improve effiency that can reduce a worker.