... -70 2. Use: Thermal insulation, rubber, brake, textile etc 3.Fiber is tough, tensi Chrysotile1. Grade: A7-20 ... , A6-40, A5-50, A5-60, A5-702. Use: Thermal insulation, rubber, brake ... of electricity, Flame proof, Alkali proof.3). Fiber is tough, tensile and soft with better luster ... products.3). It could be used in brake products.4. It could be used in ...