钢制管道 meaning in Chinese

steel pipeline

Technical standard of polyethene tape coating for steel pipeline
钢制管道聚乙烯胶粘带防腐层技术标准
Technical standard for construction of steel piping for petrochemical industry
石油化工钢制管道工程施工工艺标准
Standard of coal tar enamel external protective coating for buried steel pipeline
埋地钢制管道煤焦油瓷漆外防腐层技术标准
Test method for nondestructive measurement of film thickness of pipeline coatings on steel
钢制管道涂层厚度无损测量的试验方法
Technical standard of tapping plugging on steel pipeline - part 1 : plug cylinder stopple
钢制管道封堵技术规程.第1部分:塞式筒式封堵

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