Specification资源列表
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[国外标准] BS 1494-1-1964 Specification for fixing accessories for building purposes. Fixings for sheet, roof a
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[国外标准] BS 1490-1988 Specification for aluminium and aluminium alloy ingots and castings for general enginee
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[国外标准] BS 148-1998 Specification for unused and reclaimed mineral insulating oils for transformers and swit
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[国外标准] BS 1470-1987 Specification for wrought aluminium and aluminium alloys for general engineering purpos
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[国外标准] BS 1434-1985 Specification for copper for electrical purposes copper sections in bars, blanks and se
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[国外标准] BS 1203-1979 Specification for synthetic resin adhesives (phenolic and aminoplastic) for plywood