... metal, perforated metal wire mesh, perforated mesh, perforated metal sheet, perforated metal piece ,perforated plates , pouching hole mesh ... in mine, medicine, sieving grain, noise, noise elimination, machine-protecting and decoration, etc. Hole Patterns including: Round; Rectangular ... a vibrating application.drawing draft of perforated metal sheet decorative perforated panels WELCOME TO OUR FACTORY ! ...