1,Material:100% polyester. 2,laundered by ultra clean water. 3,Suited to class1000~class10. 4,Vacuum Packaged in Clean Room. We are Manufacturer of Cleanroom Wiper,Polyester Wiper,Polyester Wipes,Lint Free Wipes,Cleaning Wiper,Microfiber Wiper,We have been in this trade for 8 years. Features:*Weight:120gsm.*100% Continuous polyester construction.*Quantity:600pc/bag(4inch),150pc/bag(6inch),150pc/ ...