... 2.safety: 7:1 3.Break strength:3000kgs Polyester Lifting Strap Main technical data Material: polyester, polypropylene, nylon, Dubang Si safety factor: 6 ... not use a damaged sling 2, in the lifting, do not twist, twisted sling 3, do not let the sling knot 4, to avoid ... sewing Link area of ??work overload 5, when the mobile sling, do not drag it 6, to avoid erosion or shock ...