On July 13th, a batch of mining unit hydraulic props ordered by merchants in Fugu County, Shanxi Province, and mine flatbed cars ordered by merchants in Ningxia have been loaded and shipped in the Chi
In order to regulate the unmanned aircraft engaged in operational flight activities and promote the safe, orderly and healthy development of the unmanned aircraft industry, the Civil Aviation Administ
Recently, with the formal approval of the State Intellectual Property Office, Shandong Tiandun Security & Rescue Equipment Manufacturing Co., Ltd., a subsidiary of China Coal Group
The damage of many parts in the dowty retarder is closely related to the internal pressure when the dowty retarder works, especially the damage of the sealing cover. Through fault tree analysis, we ha
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
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
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Executive Editor: Zhang Wen / Editor: Linda Zhang