... Nylon ,70% Polyester ,Double Knits,135g/m2 Size: 4"*4", 6"*6", 9"*9", 12"*12" Classs: 100, 1000,100 Cleanroom ... Nylon ,70% Polyester ,Double Knits,135g/m2 Size: 4"*4", 6"*6", 9"*9", 12"*12"Classs: 100, 1000, 10000 Application: Cleanroom ... wipers are widely used in Glass industry, Chemical, instrument, Laboratory, Food indusries etc., Cleanroom Wipers (Micro Fiber)