... ,22x22 size:3'x100',4x100',1x25m wire gauge:BWG31-32 aluminum insect screen: material:stainless steel wire304,304L,316 mesh/inch ... ',1x25m wire gauge:BWG31-32This product is often used for windows and corridors to prevent bees, flies, mosquitos from bugging you ... and food industries4) Also used in medical and mechanial manufacturing Aluminum Insect Screen(Direct Factory)