"A hot work permit is limited time in the same place no more than 12 hours; two, three times the same place the hot work permit can not exceed three days, night banned a flare.

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" The level gets angry the work permit finite time not to be able to surpass for 12 hours in the identical place; Two level, three levels get angry the permit time identical place not to be able to surpass three days, in the evening forbids the level to get angry.

The level of hot work permits limited period of time in one place cannot be more than 12 hours; two-, three-level fire permit time same place no more than three days, prohibited level fire at night.

The level of hot work permits limited period of time in one place cannot be more than 12 hours; two-, three-level fire permit time same place no more than three days, prohibited level fire at night.