Grade 120 hooks are designed in such a way that in the case of overload they do NOT break brittle. but hook aperture visu-ally opens.
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| 型号 | 极限工作载荷 | a | b | d | h | m | t | 自重 |
| Code | WLL | mm | mm | mm | mm | mm | mm | weight/kg |
| t | ||||||||
| UDJ- 8 | 3.0 | 52 | 27 | 54 | 32 | 38 | 123 | 1.5 |
| UDJ-10 | 5.0 | 67 | 32 | 70 | 36 | 47 | 146 | 2.5 |
| UDJ-13 | 8.1 | 62 | 37 | 74 | 47 | 51 | 158 | 4 |
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