... hole,square hole,slot hole Thickness:0.2 to 20 mm Hole arrangement straight, staggered we have our own factory punching net (perforated mesh ... plate, speaker net, punching net , steel net, and other products, and special hole pattern comprising stamping, and ... : fromed by stamping; by hole sub: round hole, square hole, diamond hole, elliptical hole, triangle hole. Sturdiness and durability, elegant ...