... galvanized round, Rectangular Detailed product description Circular screensCircular screens usagedpetroleum, oil refining, chemicals, light industry, medicinemetallurgy ... .10mm , diameter 280mm ,quantity 2000pieces Circular screens materialmainly produce :AISI302,AISI304,AISI316,AISI309,nickel ... 2080)Aluminum , nickel-plated copper Circular screens rangeCircular tape discsD from 44mm to 558mmRectangular ...