1.Light, soft, high safety factor, long life, 2.non-conductive ... polyester industrial yarn Safety factor: 6:1, 7:1,8:1 Production standards: ISO4878 international standard, European standard EN1492-1: 2000, JB/T-8521 Lifting capacity: 1t ... industrial yarn Safety factor: 6:1, 7:1,8:1 Production standards: ISO4878 international standard, European standard EN1492-1: 2000, JB/T-8521 Lifting capacity: 1t ...