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| Chinese | English |
| 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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| Chinese | English |
| 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 |