| 摘要 |
<p>A octagonal clinched drum top (1) comprising the drum top (1) which covers the flanges (2) the said flange (2) curled (4) over the neck (3) of the drum top which have inner threading (5) and extends below the drum top at right angle (6); the said drum top clinched (7) over the octagonal base of the flange there is provided a gasket (8) in between the flange and the drum top which is of any resilient material preferably rubber provided in a leakproof manner sot that leaking is prevented from a sudden impact due to the dropping of the drum in any orientation.</p> |
