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DEVICE FOR SECURING RAIL TO CRANE-SUPPORTING GIRDER
DEVICE FOR SECURING RAIL TO CRANE-SUPPORTING GIRDER
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机译:用于保护起重机支吊架的装置
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摘要
the invention относитс to handling the engineering. the purpose of изобретени is the broadening of the range of adjustable width, rail track while reducing the labour intensity of installation and d
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