... and so on.Specification: Having round hole, square hole, slot hole, ellipse hole, ellipse hole, plum blossom hole, hexangular hole and so on. Mesh diameter: ... is not easy to distort and anti- aging. The hole arrangement pattern and shape multiplicity. The surface is smooth. ... grain ventilates and so on. stamping mesh,punching hole mesh,perforated metal mesh,punching hole sheet, diamond hole mesh