| 摘要 |
<p>The blank has a rectangular body (1) which will become the skirt of the cap, with complementary hooking means (2, 3), a first folding groove (7) on one edge followed by a strip (5), by a folding groove (8) and by tongues (6), cut-out slots (9) starting from the first folding groove (7) providing the tongues (6) with an edge terminated by a truncated point (11A) which hooks, in the utilization position, on to the neighbouring edge of the neighbouring tongue in order to protect the inner face of a pipe.</p> |
