12/30256801 DC : DRAFT FEB 2012被替代
BS EN 1124-4 - PIPES AND FITTINGS OF LONGITUDINALLY WELDED STAINLESS STEEL PIPES WITH SPIGOT AND SOCKET FOR WASTEWATER SYSTEMS - PART 4: COMPONENTS FOR VACUUM DRAINAGE SYSTEMS AND FOR DRAINAGE SYSTEMS ON SHIPS
出版：British Standards Institution
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