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NFPA55
- Standard for the Storage, Use, and Handling of Compressed and Liquefied Gases in Portable Cylinders
NFPA
- 非常详细的电机元件电路符号。此为美规标准。-A desiner s circuit symbolics of datasheet by American standard.
NFPA-203-1995
- NFPA 203 Guide on Roof Coverings and Roof Deck Constructions 1995 Edition