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CAST IRON BRANCH FOR DUCT BANKS,DUCT BANK AND ANTICORROSIVE PROTECTION OF SAID BRANCH

机译:公营银行的铸铁分支,公立银行的分支和防腐蚀保护

摘要

A cast-iron pipework element adapted to be buried has an external coating made up of an inner layer of zinc, a porous intermediate layer of zinc/aluminium alloy containing from 5 to 55% of aluminium, and a porous outer layer, or pore-blocking layer, comprising an organic binder, especially a water-based paint, a bitumen varnish or an epoxy resin.
机译:适于掩埋的铸铁管道元件具有由锌的内层,含有5至55%的铝的锌/铝合金的多孔中间层和多孔的外层(或阻挡层,其包含有机粘合剂,尤其是水基涂料,沥青清漆或环氧树脂。

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