... to GB12059-89, SJ/T110990-96 standards Anti-Static Clean Silk Model No.Product NameYarn AccountDensity(Line/Inch)Width(cm)Material ... industry and medicine, food, health and other industries.Clean silk is woven from filament means, and in the middle interval ... air tightnessClean clothes-free filler, non-adhesive, so non-masonry materials. The surface is very smooth and clean clothes to prevent ...