1.
A sweeping rod should be installed at a height not exceeding 200 millimeters above the ground.
The sweeping rod should have a horizontal horizontal bar at the bottom and a vertical horizontal bar at the top.
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Doushan Mine Construction Scenarios | A picture of the advantages of the wide body vehicle shows you!
Construction technology emergency! Harbin, a construction site, a person fell from the 11th floor hit three people, causing two deaths and two injuries!
