Top Machinery is professional manufacturer and exporter of accessories for water, oil, gas, and environmental industries. The products mainly include continuous slot screen, pipe base screen, perforated tube, slotted pipe, Screen Mesh, strainer, casing pipe, centralizer with any specifications and materials etc. that concerned with well drilling project. Top Machinery now has an area of 2000 square meters factory, professional comprehensive screen production equipment, and adopts international advanced production technology and testing means to reach an annual output of 17000 meters of production capacity. Screen mesh( 1.5" －35" ) the smallest slot 0.05mm, minimum tolerance 0.02mm, maximum length of up to 6 meters.