hot-dip galvanized pipe ; hot-dip galvanizing pipe
热镀锌钢管 Hot dip galvanized steel
热浸镀锌钢管安装 Hot-dip galvanized steel pipe installation
钢管热镀锌 hot-galvanized steel tube
钢管热镀锌机组 steel tube hot-dip galvanizing line
钢管应按设计要求采用热镀锌管。
The steel pipe should be galvanized one as per the design.
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热镀锌管，为提高钢管的耐腐蚀性能，对一般钢管进行镀锌。镀锌钢管分热镀锌和电镀锌两种，热镀锌镀锌层厚，电镀锌成本低，表面不是很光滑。
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