This screen is of a brand-new type. It can be excessively applied to mine, coal, electricity, building material, fireproofing, and other industries, in which bulk materials, as well as granular materials of big, middle and small size, should be classified. Compared with products of the same type, our products have advantages of larger screening capacity, lower weight, lower cost, easier construction and so on. Moreover, its screen surface is installed obliquely, and spliced with small pieces, so it is particularly convenient to change.