YD系列電動滾筒      ZQ系列減速機     ZLH、JLH、CYJ3等油田減速機   JD0.5 0.75 11.4系列調(diào)度絞車

Taiyuan reducer electric drum factory YD series electric drum ZQ series reducer zlh, JLH, cyj3 oilfield reducer jd0.50.7511.4 series dispatching winch