... and Etc Pre-oxidized fiber: pre-oxidized fiber is the intermediate product of carbon fiber, and it is a ... fiber of 1k, 3k, 6K, 12K, 24K, 48K, 120K, 240K and 360K, etc. At present, based on our own technologies ... and equipments, we can successfully pre-oxidize extra large-tow fiber of 360K, the ... is the first case at home. Pre-oxidized fiber can be used as labor suit before the ...