... , 48K, 120K, 240K,360K and Etc Pre-oxidized fiber: pre-oxidized fiber is the intermediate product of carbon fiber, and it is ... currently supply pre-oxidized fiber of 1k, 3k, 6K, 12K, 24K, 48K, 120K, 240K and 360K, etc. At present, based on our ... aircraft; acid resistance, alkali filtration materials; sealing materials; lining fabrics of chairs, etc. Pre-oxidized Carbon Fiber