... source of sound insulation, noise can be used sound-absorbing board with the ceiling, wall of building ... carbon steel, aluminium magnesium alloy plates, copper, nickel, board, PVC, etc. Weave characteristics: stamping, outspread, Divided into ... loudspeaker meshes, such products widely used in chemical machinery, pharmacy, food &beverage machinery, equipment, machinery, harvester cigarettes, hot, dry ...