Parameter of Single arm rings
| 吊环型式 | 规格型号 | 额定载荷(Short tons) | 标准工作长度(mm) |
| 单臂吊环 | DH50 | 50 | 1100 |
| DH75 | 75 | 1500 | |
| DH150 | 150 | 1800 | |
| DH250 | 250 | 2700 | |
| DH350 | 350 | 3300 | |
| DH500 | 450 | 3600 | |
| DH750 | 750 | 3660 |
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