| 摘要 |
A nozzle for welding plastic floor and wall covering, comprising a metal sleeve, the rear part (1) of which is tubular and may be connected to a conduit or the like for the supply of hot air to the inside of the sleeve. The nozzle is provided with a front end or tip (2) which is dome-shaped and completely closed. To the rear of the tip there are two diametrically opposed openings (6, 7) for the expulsion of hot air, said openings being directed obliquely forward and the sleeve being void of further openings between the said two openings. |
