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2.34 MB2020-12-14
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[国外标准] DIN 2615-1964 Steel butt-welding pipes fittings tees with reduced pressure
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[国外标准] BS 3698-1964 Specification for calcium plumbate priming paints
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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] JIS C3802-1964 Permissible Limits of Visual Defects for Insulating Porcelains
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