Shandong China Coal Import & Export Co., Ltd.

Due to various reasons, the phenomenon of "false top" of dowty retarder exists in various marshalling yards to varying degrees, and it is relatively hidden. It is not easy to be found if it does not p

The performance of dowty retarder is mainly determined by its internal pressure valve. Through the understanding of the functional principle of the dowty retarder, we know that there are many importan

In recent ten years, the operation practice of marshalling stations at home and abroad has fully proved that the dowty retarder, as a continuous speed control equipment for hump, has the following fo

On the morning of May 20, Yingjisha County Party Committee Vice Secretary, Jining Aid Xinjiang Command Comrade Sun Xizhong and his entourage visited China Coal Group, accompanied by Jining High-tech Z

There are two forces acting on the dowty retarder, braking work and resistance work. Braking work (absorption work) is the work done by the dowty retarder to the vehicle in the braking state.

In order to better promote the interactive docking between enterprises and job seekers during the outbreak, on May 15th, a webcast job fair held by Bureau Of Human Resources And Social Security in Jin