K series gearbox helical gearbox K-type high efficiency,Small volume, light weight,long service life Helical gearbox(K)Model:K100 K112 K132 K140 K180 K212 K265 K315 K375 K450 K500 K600Zibo Wanxin Speed Reducer Co., Ltd. is a specially appointed enterprise producing all sorts of speed reducers in Northern China.Our company, with a long history of production, powerful technical force, and complete ...