Asbestos rope, also known as aluminium silicate fibre rope, is made by twisting or knitting asbestos yarn, which is used in various thermal equipment and heat conduction system for heat insulation or processing to make other asbestos products. It is made by twisting asbestos yarns and yarns of not less than 5 branches under 8 mm and not less than 4 branches above 10 mm. Asbestos yarn is made by twisting chrysotile asbestos fibers with them. It is a single yarn made of blended fibers.