... -20,3-60 Use:insulation,rubber,brake,textile etc asbestos fiber Asbestos content:98%min Model:6-40,5-50,5 ... -30,4-20,3-60Asbestos content≥ 98%MaterialMineral fiberFiber length0-14 mmColourWhiteWhiteness≥ 95%Grade99%Thermal Conductivity0.08W/(m.K)Mohs hardness ... magnetism, No conduction of electricity, Flame proof, Alkali proof. 3.Fiber is tough ,tensile and soft with better luster and spinnability ...