| 摘要 |
Non-slip safety sole clampons comprising a sole or base board that is detachably fixable to the underside of each boot, a number of generally hemispherical bulges being integrally formed in a predetermined arrangement on the underside of said base board, screw holes being formed through said bulges, screws being screwed therethrough from the upper surface of the base board so that the ends of said screws may protrude through the bulges to constitute claws or spikes.
|
