v wire water well screens, wire wrapped screens pipe, Johnson Screen, spiral screen tube, welded wedge wire screen, reversed ... steel slot tube, reverse rolled screen, strainer pipe, continuous slot wire wrap well screens, pipe base well screen, ribbed-type wire wrapped ... or steel plates Aperture minimum: 0.1 mm Frame: polyurethane, flat iron 40 * 8mm & 40 * 6mm USES: used in coal, mining ...