... are in line with the requirement of the Hard Disk industry ,free from silicone, amides or DOP, low in both particles ... ion content ,it also can be used with 99.9% industry IPA .CM-FS750 are constructed from compressed ,100 ppi(Z ... , hard disk drive, LCD,PCB,SMT, IC, medical and biotech industry . Packing Info:500swabs/bag, 50bags/ctn Other cleanroom swabs(CM:Cleanmo ...