| 摘要 |
<p>A combustible gas-fired heat-shrinking torch (1) for heat-sealing, for example, sheets of tar strips and the like for waterproofing civil roofing, comprising means for dispensing at least one combustible gas which are provided with at least one discharge port (2) for the combustible gas and at least one flexible tubular element (3) which can be associated with at least one tank for supplying the combustible gas. The torch (1) comprises means (4) for mixing the combustible gas with at least one oxidizer taken within the group that includes air, oxygen and the like for the combustion of the combustible gas dispensed by the discharge port (2).</p> |
