The helical worm-gear reducer (power 0.12 ~ 22kw), the helical bevel- gear reducer (power 0.12 ~ 200kw), the parallel shaft helical- gear reducer (power 0.12 ~ 90kw), the helical gear reducer (power 0.12 ~ 160kw) and the machinery variable speed machine (power 0.18 ~ 7.5kw), the cycloid needle wheel reducer, the hard surface gear reducer.
