Gradient orifice/Conic Hole Screen is composed of ribs and V winding wire, manufactured with advanced special welding equipment.Ribs and V winding wire are connected with resistance weld by special equipment and has the advantages, such as, high welding strength, homogeneous gap, corrosion resistance, large effective filtration area, good permeability,simple structure, and slot size is 20 micron or larger for users to choose freely.

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