-Reminding workers wearing full protective gear and clean cleanup work after the completion of the work.-Control power lines, gas-operated welding machines, gas tanks, ... to the right and neatly where rules against short circuit, fire and explosion.-Active control pour concrete, dig the soil.-Monitoring of crane operations and freight on high security.-Establish the minutes of handling violations.
đang được dịch, vui lòng đợi..
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