... and cold steel, copper and fiber board, plastic board, etc. Various kinds of nonmetal board Mesh is to point to in the same ... punching nets, etc.Type: ChangFang holes, square hole hole, diamond, round hole, hexagon hole, the cross hole, triangle holes, long ... . Mesh is widely used in the electronics industry, such as sound of dustproof enclosures, etc. Stainless steel. Galvanized sheet round hole nets