The customized hood with irregular shapes is set according to the shape of the hood. Due to the limitations of different customer sites and different needs, the hood can be customized with raised, elliptical, cover plate, different corrugated, and oversized corridor types. Customized hood materials for irregular shapes can be selected: galvanized steel plate, color coated steel plate, stainless steel plate, aluminum magnesium manganese plate, fiberglass steel plate, PC endurance plate, and other different materials. Different materials will be used in different working environments, and can be selected according to the customer's on-site environment and needs.