NO.1 12 T - 13 T Gear processing
NO.2 14 T - 16 T Gear processing
NO.3 17 T - 20 T Gear processing
NO.4 21 T - 25 T Gear processing
NO.5 26 T - 34 T Gear processing
NO.6 35 T - 54 T Gear processing
NO.7 55 T -134T Gear processing
NO.8 More than 135TGear processing