pipework installation
管道安装
over the years copper pipework corrodes.
日久年深，铜管慢慢被腐蚀了。
I checked all of the pipework for leaks.
我检查了所有管道寻找漏处。
(3) Boiler pipework insulation and cleading design.
锅炉管道系统保温和护罩设计。
pipework installation
管道安装
over the years copper pipework corrodes.
日久年深，铜管慢慢被腐蚀了。
I checked all of the pipework for leaks.
我检查了所有管道寻找漏处。
(3) Boiler pipework insulation and cleading design.
锅炉管道系统保温和护罩设计。
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