... RMB.Third, we are a professional enterprise specilized in producing gears and spiral bevel gears and shafts.Fourth,Spur Gear ... .There is over 280 machine processing equipment, like CNC lathe, milling machine, 3 meters gantry planer, grinding machine, etc. and there ... is our feature product and there are spiral-milling machine, lapping machine, and inspection machine, etc.5. The heat treatment is self- ...