... 1260,1360,1430. 3.Excellent thermal insulation property. Bulk ceramic fiber,Ceramic bulk fiber, Loose ceramic fiberCharacteristic:1. Low thermal conductivity , Low thermal capacity ... 20.2All the fibers are packed in sack with the packing weight: 20kg Or made according to customers s requirementApplication ... ;daily-use electrical heat insulation and retardant. Bulk ceramic fiber , Loose ceramic fiber