... ,5-50,5-60,5-70,4-30,4-20,3-60 asbestos fiber Asbestos content:98%min Model:6-40,5-50,5-60,5-70,4-30,4 ... -20,3-60 Use:insulation,rubber,brake,textile etcasbestos fiberasbestosAnalysis : Item No.6-40,5-50,5-60,5 ... -70,4-30,4-20,3-60Asbestos content≥ 98%MaterialMineral fiberFiber length0 ...