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建筑通风风量调节阀
The valve for building ventilation system
价格：￥0.00
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蓄冷空调工程技术规程(附条文说明)
Technical specification for cool storage air-conditioning system
价格：￥0.00
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铝电解厂通风与烟气净化设计规范
Code for ventilation and fume purification design of aluminium smelters
价格：￥0.00
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通风管道技术规程(附条文说明)
Technical specification of air duct
价格：￥13.00
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集中空调通风系统清洗行业技术管理规范
Technical management standard for central air-conditioning and ventilation system cleaning industry
价格：￥0.00
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非金属及复合风管
Nonmetallic and foil-insulant composite duct
价格：￥0.00
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核级空气净化部件安装用排架
Frames for mounting nuclear air cleaning components
价格：￥0.00
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通风空调风口
Air outlets and inlets for ventilation and air conditioning
价格：￥0.00
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不燃型无机玻璃通风管道
Non-combustibility ventilating pipes of inorganic material and fiberglass
价格：￥0.00
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