3.9.17.1 Before work, apply for work tickets and dangerous point pre-control cards according to the work process. <br>3.9.17.2 Before construction, take measures to prevent environmental pollution, prepare rubber sheets, oil pans, etc., and resolutely implement the "clean site after completion of work" in the work. <br>3.9.17.3 Prepare waste bins, waste oil storage drums, etc., and place all kinds of waste in a timely manner, and it is strictly forbidden to throw them away. <br>3.9.17.4 The lifting gear should be inspected before the hoisting process
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