... -60,5-70,4-30,4-20,3-60 asbestos fiber Asbestos content:98%min Model:6-40,5-50,5-60,5-70,4-30,4-20,3-60 Use ... : 1. Main chemical content is SiO2, MgO, crystal water etc. 2.No magnetism, No conduction of electricity, Flame proof, Alkali proof ... be used in thermal insulation products. 2.It could be used in rubber products. 3.It could be used in brake products ...