或者，至少，可以再买一圈采暖通风管。

Or, at least, to buy another roll of duct tape.

热空气焊接用于多种焊接，如通风管，轻型窗帘，轻型油布产品。

The hot air welding is used in the welding of multiple panels to make products such as ventilation tubes, light weight curtains and light weight tarps.

通风管采用镀锌钢板制作，风管与风井连接处缝隙应用不燃材料填实。

Ventilating tubes are made of galvanized steel plate, the gap between the joint of air tube and air well should be filled with incombustible materials.