Materials: 304, 316, 316L perforated stainless steel mesh, iron plate mesh, aluminum net of metal materials. Specification: 19-180mm, thickness 0.6-3.5mm, unlimited length. Overall dimensions, the filter precision according to user requirements production. We also can produce specific products according to special requirements and ensure that we provide you with good quality products and efficient service. Features:Excellent stainless steel corrosion resistance,acidproof, alkali resistance and salt corrosion.With uniform welds and compression capability, crevice corrosion will not become bigger. There is no length limit,and generally,the intensity of it is higher than the straight seam filter frames.It can produce large diameter pipes with narrow blanks.You can also produce different pipes with blanks of the same width. Uses: widely used in oil drilling and oil sand control pipes.It also can be used as a filter frame.It has big support, high roundness and good straight degree.It's used in chemical and water treatment,power plants filtration and water purification.The dimensions and filter precision are according to customers' demands.