The root is hinged by the horizontal pin and the slewing platform, and can be freely rotated in a vertical plane (ie, a variable plane).
Recently, China Coal Group received a thanks letter from the Jining High-tech Zone Information Industry Office, and thanked our Group''''s support and full cooperation in the construction of Shandong In
November 8th afternoon, a batch of U steel arch supports were formally loaded in the industrial park of Shandong China Coal Group, would be sent to Xiangyuan District, Shanxi Province.In March and Jun
October 31 morning, 100 sets of new-type U-shaped steel arch supports were formally loaded in Shandong China Coal Group intelligent equipment production workshop after quality inspection and would be
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Executive Editor:Zhang Wen