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设计用邮政设备和用品用具图形符号
Graphical symbols of postal equipments and appliances for design
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装卸过桥技术条件
Technology conditions of loading and unloading foot walk
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邮政通信设备安装工程验收规范.第十册.信盒处理系统
Code for acceptance of postal equipment installation project volume 10 the letter tray conveyance system
价格：￥0.00
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分体型厢式邮政汽车技术条件
Technology conditions for postal van (separate)
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扁平件分拣机安装工程质量检验评定标准
The check and evaluate standard for quality of flat sorting machine installation engineering
价格：￥0.00
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