Lifting sling 1) Material: polyester fiber 2) Safety factor: 5:1, 6: ... ) Work load limited: 0.5 - 100MT Lifting slingPatent Number ZL 2006 2 0019175.8 Webbing sling is produced from top quality synthetic ... methods. According to customer's requirement, the safety factor of sling has 4:1,5:1,6:1,7:1,8 ... -101000042502503002.01001.641.842.05W03-121200043003003002.01001.862.062.70 Lifting sling