| 摘要 |
<p>The wrench (1) has wrench body including two polygons with different specifications sizes provided inside or outside the wrench. A lug (4) is provided inside or outside a wrench body, wherein the lug is formed between the two polygons with different specifications sizes of the wrench body. Two end sections of the wrench body are provided with lugs. Protuberances (9) are provided between the two polygons with different specifications sizes.</p> |
