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1·Use a wire sling of a greater S. W. L whenever the exact weight of the load is unknown or there is a hazard to personnel.

当无法确定载荷的准确重量或对人员存在危险时，使用大于安全工作负荷的钢丝绳。

2·Property requires and production process of sling steel wire are introduced.

介绍吊索钢丝的性能要求及生产工艺；

3·Wire rope sling loading intensity factor the map of the lifting angle ia following.

成套钢丝绳索具的负载强度系数。