1.上下吊钩采用高强度合金材料锻造而成，并经热处理加工，具有在超载时不断裂，只出现弯曲变形的特点，还具有三个延伸点作为标记。上下吊钩采用嵌入式卡索板设计和精密铸钢的卡索板有效的防止吊钩脱落。
The top and bottom hook are made of forged high strength alloy, accomplished by heat treatment proce. The hooks also have three stretch indicators. However if by any chance the hook is overloaded there is no fear of it breaking, it will simply gradually start straightening out, avoiding any load drop or personal injury.
Precision cast steel latch in bottom hook with embedded design can prevent the bottom hook off effectively.
2.高强度加厚的外壳设计更有效的保护了产品齿轮及内部配件。
The thickened high strength shell provides accurate gear centering and high mechanical effectively.
3.双棘爪刹车系统及弹性更大的棘爪弹簧令产品的制动稳定性更高，特别设计的刹车系统防尘保护罩，大大提高了刹车系统的安全性。
High elastic spring with double pawl brake system design featuring stable operation and smooth braking.
It is all significant for improving the security and dependability of the braking system through designing dust cover of braking system.
4.采用高强度耐磨G100级起重链条，安全性能更高，更能适应安全要求更高的作业产所。
Superior Grade 100 wear-resisting load chain is really featured by higher safety and could be used in more complex condition.
5.专门设计的手拉链系统及防卡链装置，保证手拉更顺畅，手拉力更轻，斜拉也不卡链。
Chain guide roller and stripper ensure proper fit of chain over pocket wheel. Hand the chain is smoothly and the pulling force is small. Both the hand chain and load will never be torsion even the pulling is slanted.
6.整机外壳采用不锈钢盖型螺母，更有效保护螺丝长时间户外及化工的恶略环境不受损伤，使拆卸维护更加方便。
The stainle steel cap nuts on shell of the hoist protect the screw from various injuries of exposed outdoor for long time and severe chemical environment. This design is also simple to disaemble, easy to maintain
7.USZHIY手拉葫芦每台经过工作载荷1.5陪动检测试全检，并出具带有流水号的测试证书；
Every USZHIY brand hoist individually proof load teat to 1.5WLL with individual serial number.
8.安全系数为额定载荷的四倍
MBL of 400% of  WLL.
9.符合EN13157欧洲标准。
Meeting requirement of EN13157

美国进口CB-A型手拉葫芦机头特写

美国进口CB-A型手拉葫芦吊钩