... , such as roofing material, container tents, PVC tarpaulin, PVC water bed, swimming pool, plastic membrane material, inflatables jointing and mending etc ... weld: Technical Feature:1. No glue needed.2. Advanced hot air welding technology.3. Digital temperature display to show the actual ... points, one line) to the welding-joint. Take the hot air gun switch with right hand, put the gun mouth enter ...