... Webbing Sling and Round Sling 0.5-360T 1.100% polyester 2. One to four (ply) 3. SF:5:1, 6:1,7 ... 's requirement, the safety factor of sling has 4:1,5:1,6:1,7:1,8:1, its load range ... is from 0.5t to 100t. Which is produced according to International stanard ... Lifting Sling / Flat Webbing Sling / Round Sling and Endless Sling 0.5-360T