CB/T3477 A50G防浪阀船用法兰铸钢/青铜直通可闭立式防浪阀

CB/T3476 BS50Q船用法兰青铜/铸钢直角立式防浪阀

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CB/T3475 BS50Q防浪阀CB/T3475船用法兰式青铜直角防浪阀

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CBT4023-2005日标法兰铸钢带nk船检证书可闭立式防浪阀

CBT3477-1992上海全冠船用阀门法兰铸钢可闭立式防浪阀

CBT3476-1992上海全冠船用阀门法兰直角铸钢立式防浪阀

CBT3475-1992上海全冠船用阀门直通法兰青铜直角式防浪阀