... Rigging Lifting Sling, Flat Webbing Sling and Round Sling 0.5-360T 1.100% polyester 2. One to four (ply ... ) 3. SF:5:1, 6:1,7:1 The characteristics of the ... , the safety factor of sling has 4:1,5:1,6:1,7:1,8:1, its ... ( function(){ var aBigImageSrc = [ 'http://i01.i.aliimg.com/photo/v7/537090789_1/Rigging_webbing_Lifting_Sling_Flat_Webbing_Sling.jpg' , 'http://i01.i.aliimg ...