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【Utilities – HVAC Edition】20180814

2018-08-15View Original

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This post was last edited by hesonchang214 on 2021-4-26 at 18:21. Judgment: Class A flammable substances in gases refer to those with an explosion lower limit of less than 10%. () Answer: (Correct)
Reply #22018-08-15
Correct √ “Class A flammable substances” should be “Class A fire-hazardous substances””

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