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发表于 2008-8-14 15:28
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来自: LAN
zss024 发表于 2008-8-13 21:52
after fabrication of the steel pipes,acid cleaning shall be carried out before installation on board.For the steel pipes applying the polyethylene lining,blasting shall be carried out instead of acid cleaning before lining.
钢管加工后 ,在进入船体安装前必须进行酸洗。如果该管线要内衬聚乙烯,则在衬里前,要求对管子进行打砂处理 |
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