Screening/filtering: The dense small holes on the board are used to separate solid materials of different particle sizes (such as ores, grains, chemical raw materials, etc.).
Distributed airflow/liquid flow: used as a distribution plate in chemical equipment such as towers and reactors to allow gas or liquid to pass uniformly.
Supporting structure: It carries catalysts, fillers, and other media in the filtration system or packed tower.
Anti clogging design: Large holes at the edges may be used for bolt fixation to ensure stable installation inside the equipment.