... aquatic products Qi Mozi Health 6. Opening Pattern: Rectangle, Square, Round, Triangular, Hexagonal, Blosom and many other special ... to customer needs. 7. Hole Shape: Round holes, square holes, scales, plates for design, slot holes, triangular holes, slot ... generally running in diagonal rows at 60 degree), rectangular, elliptical, square, triangle, diamond, hexagonal, cross, slotted, star, plum blossom ...