| 摘要 |
<p>There is provided an aerosol dispenser comprising a body and a closure sealed to the body; the closure comprising an annular metal ferrule extending circumferentially around the axis of the closure and provided with a valve arrangement for dispensing material form the interior of the dispenser, characterised in that the closure welds directly to the body by an overlapping metal-to-metal laser weld extending around the body to produce a double weld in the region of overlap and provide a hermetic seal between the matting surfaces of the body and the ferrule.</p> |
