Features: 1 Used for percolation and aeration. 2. Hole shapes: round , oblong, square , triangle 3. Dimension: ... *2440(mm), 1250*2500 (mm) Our products are widely used for wine-making, malting, paper-making, mining, crement-producing, food-processing ... , food stuff,noise-sliencer, environmental protection, agricultural machine, chemical industry and pharmacy industry.