Asbestos yarn are twisted two or more strands of asbestos yarn and other fiber. Asbestos metallic jointing yarn are twisted by asbestos yarn and metal wire. asbestos fiber yarn, asbestos fiber yarns Heat-insulation material on thermal installations and heat conducting systems. loss on ignition : 19% 24% 28% 32% 35% max Grade class: A, AA, AAA, AAAA Spec: Ø 0.75mm-3.0mm Max. working temperature: 350 oC-- 550 oC Others item supplied according to client's requirement. asbestos fiber yarn, asbestos fiber yarns