Advantage 1. A continuous slot opening which significantly increases the available open area, thus providing greater access to the water bearing zone. 2. A "V" shaped profile wire which avoids and ensures an uninterrupted flow. 3. A uniform and efficient well development due to the continuous slot opening. 4. Ladder-like wire water well screens have a structure and high open area, as well as accurate slot dimension. 5. Ladder-like wire water well screens have the features of easy backwashing, long life span, safety and reliability as low comprehensive cost. Styles of connection:by welding or by threaded male/female couplin. Standard length:3m/5.85m .