... boiler bearing 锅炉座 boiler blow down valve 锅炉排污阀 boiler blow out pipeline 锅炉排污管路 ...
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... boiler blow out system 锅炉排污系统 boiler blow valve 锅炉排污阀 boiler blow-off system 锅炉排污系统 ...
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... 舷旁截止阀 Ship-side screw-down valve 锅炉排污阀 Blow-off valve 止回阀 Non-return valve, check valve ...
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锅炉舷外排污阀 overboard blow-off valve for boiler
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