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【Daily Question】Storage and Transportation 6.21

2020-06-20View Original

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The packing of a canned root valve can only be replaced when ( ). Empty the tank
Reply #22020-06-20
After the tank is thoroughly cleaned and isolated from the outside world, and once safety is confirmed
Reply #32020-06-21
The tank is thoroughly cleaned, and flammable and explosive materials are removed and replaced; this is done on the condition that inspections show satisfactory results
Reply #42020-06-21
After the tank is thoroughly cleaned and isolated from the outside world, and once safety is confirmed

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