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Nautical
containing
连接管
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in specified order only
Chinese
English
内部
连接管
interconnecting pipe
弯管连接头
elbow union joint
管子和挠性连接的薄板填料和护层隔热材料,HVAC 导管
用于供暖, 通风和空调设备的导管
sheet packing, lagging material for piping and flexible joint, HVAC ducts
Ducts are used in heating, ventilation, and air conditioning
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