Shandong China Coal Import & Export Co., Ltd.

Dowty retarder is a new type of speed control equipment which does not need external energy and external control to brake the rolling stock. It plays a very important role in the railway transportatio

March 31, Shaanxi Province Yulin Merchant Ordered batch of mining single hydraulic props, Shanxi Province Linfen Merchant Ordered mining flatbeds and Jiangsu Province Xuzhou Merchant the ordered U-sha

The Selection Of China Coal Group'S Products To The Ministry Of Science And Technology'S Advanced Achievements In Anti-Epidemic Science And Technology

The microcomputer controlled dowty retarder is a kind of dowty retarder. It is controlled by the computer to connect the cable and the solenoid valve to control the combination of the sliding oil cyli

Deputy Mayor Of Jining City，Li Haiyang, To Visit China Coal Group

On the morning of March 27th, many leaders of Jining Supply and Marketing Co. visited China Coal Group for a visit and inspection on the research and development of UAV production and the next coopera