... yarn rope 3.copper wire,nickel wire stainless wire fiberglass square rope It is braided by textured glass fiber yarn. As ... an excellent substitute for asbestos rope,it can be used as heat insulating and sealing materials in 550 °C conditions ... , 15 , 16 , 18 , 20 , 25 , 30 , 35 , 40 , 50 fiberglass square ropes