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【国外标准】 Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, 2024 Edition
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2025-04-28
- NFPA (Fire) 499
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标准号：
NFPA (Fire) 499
标准名称：
Recommended Practice for the Classification of Combustible Dusts and of Hazardous (Classified) Locations for Electrical Installations in Chemical Process Areas, 2024 Edition
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