Wedge wire screen use for API petroleum well casing pipe is made by wrapping and welding stainless steel V-shaped profile wire cylindrically around support rods under automatic wire screen machine. Each profile wire and support rod is welded by resistance welding. It is used in water well, oil well, gas wells and for environmental well completions. Material generally of stainless steel 304, 304L,316, 316L, 321 etc. Characteristics 1) continuous slot screens, stronger and more durable 2) more open area, very precise openings 3) virtually non-clogging and reduce media abrasion 4) easier installation and long-term operating and cost benefits Technical parameter 1) wire size: 2.2X3.5mm,2.2X4.5mm, 2) Slot width: 0.5mm,1.0mm, 3) screen diameter: 177mm,219mm,273mm,323mm 4) screen length: 5.8m,6m,11.9m,12m. Packing They are wrapped with moisture-proof paper or other packing materials inside. The outer package should be wooden pallets or wooden cases. sales1(at)webwirecloth(dot)com skype: juliamesh