作废 SY/T 0413-2002
埋地钢质管道聚乙烯防腐层技术标准(附条文说明) 埋地钢质管道聚乙烯防腐层技术标准(附条文说明) Technical standard of polyethene coating for buried steel pipeline
发布日期:2002-05-28
实施日期:2002-08-01
分类信息
标准简介
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最后更新时间 2025-08-30