Material : 30 % Nylon ,70% Polyester ,Double Knits,135g/m2 Size: 4"* ... ", 9"*9", 12"*12" Classs: 100, 1000,100 Cleanroom wipes( Micro Fiber) Description: the lowest contamination levels at an economical price, Effiiently ... with a heat sealed edge (HSE), ultrasonic sealed edge (UCE) . Material : 30 % Nylon ,70% Polyester ,Double Knits,135g/m2 Size: 4 ...