... 2, No fiber off, non-scratched. 3, Laser sealed. 4, Washed in Class 100 cleanroom. Wiper KB- ... Soft texture;2, cut and sealed by machine, with lower particles;3, abrasion and chemical resistant;4, cleans ... in equipment maintenance, circuit boards, Optical and biotechnology products and other precision instruments polished.General PolyesterSpcificationItemsMaterialsGramSizePackingN.WVolumeKB1009DS100% ...