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发布时间：2003-07-11
实施时间：2003-12-01
不锈钢塑料复合管材为我国自行开发的新型管材，其兼有不锈钢管和塑料管的优点，线膨胀系数小、内外层粘接牢..
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[DG/TJ 08-505-2000] 建筑用塑料管材标识规程(附条文说明)[现行]
发布时间：2000-09-30
实施时间：2002-12-01
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