作废 LD/T 99.12-1997
市政工程劳动定额 隧道工程 市政工程劳动定额 隧道工程 Work quota for municipal engineering construction Tunnel engineering
发布日期:1997-04-23
实施日期:1997-07-01
分类信息
标准简介
相似标准/计划/法规
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最后更新时间 2025-08-29