作废 SY/T 0015.2-1998
原油和天然气输送管道穿跨越工程设计规范 跨越工程 原油和天然气输送管道穿跨越工程设计规范 跨越工程 Design code for oil and gas transportation pipeline crossing engineering—Aerial crossing engineering
发布日期:1998-04-26
实施日期:1998-08-01
分类信息
标准简介
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最后更新时间 2025-08-30