... tenaciy polyester; 2, EN 1492-1:2000; 3,low elongation; 4,5:1&6:1&7:1&8:1 5,good quality and competitive price ... ,Material: 100% Polyester;3,Safety Factor: 5:1 6:1 7:1 8:1;4,Standard: ISO4878,EN1492-1, JB/T 8521:20075,Length: As required ... ,The safety factor from 5:1 to 8:1 are available, We make these products according to ISO4878,EN1492-1, JB/T 8521:2007 ...