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螺杆式启闭机 技术条件
Specification for headstock gears with screw stem
价格:¥0.00
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螺杆式启闭机 型式和基本参数
Headstock gears with screw stem -- Types and basic parameters
价格:¥0.00
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中小型液压闸门启闭机 基本参数
Small and middle size hydraulic headstock gears -- Basic parameters
价格:¥0.00
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QPK卷扬机式快速闸门户闭机型式基本参数
价格:¥0.00
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水利水电工程启闭机制造、安装及验收规范
Specifications for manufacture,erection and formal acceptance of gate hoists in hydraulic and hydroelectric projects
价格:¥0.00
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