Square Hole Platoon Hole Used in: decoration, the outer cover of equipments. Rhombus Hole Misplace arrange Used in: construction, decoration, expressway guardrail, etc. Combimed Hole Misplace arranging Used in: shelve mesh for market, the wall hook, etc. Triangle Hole alternately arranged Used in: decoration, the outer cover of equipments. Combimed Hole Misplace arranging Used in: shelve mesh for market, the wall hook, etc Triangle Hole alternately arranged Used in: decoration, the outer cover of equipments. Flower Hole Arrange directly Used in: the outer cover of equipments, decoration, ventilating, etc. Circular Hole (aperture min. 0. 2mm ), arrange of the plum blossom 60?Used in: machine sieve plate, loudspeaker of audio amplifiers, noise absorption equipments, filter equipments.