Perforated sheet metal sieves are fabricated on different types of materials: aluminum, cold and hot rolled sheet metal as well as galvanized sheet metal, stainless steel, copper and brass. Minimal hole and perforated sheet metal form are determined by thickness and type of material as well as the very application of the same product. It is important to retain strength and resistance of sheet metal sieves in the production process. Due to its extraordinary functional features this type of sheet metal is applied in agricultural industry designed for screening, separation and grain washing together with drying, as well as fruit and vegetable straining, milling and extracting. Together with the previous, perforated sheet metal sieves are used in the selection process and filtration in the mines, quarries, gravel plants, recycling industry and processing equipment production.