下属两个分公司，还生产有雷蒙磨粉机等矿山设备。
Under the two subsidiaries, also produces a powder Raymond Mill and other mining equipment.
雷蒙磨粉机的气流系统是密闭循环的，并且是在正负状态下循环流动的。
Raymond mill is a closed loop air flow system, and circulation in the flow of positive and negative state.
可逆转雷蒙磨粉机是在423216雷蒙磨粉机的基础上，引进国内处先进技术设计改造而成的一种可逆转的大型雷蒙磨粉机。
The reversible Raymond bowl mill is a large one which has been designed and improved by introducing advanced techniques at home and abroad on the basis of the 423216 Raymond bowl mill.
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