1.Q: You are the manufacture or the trade company?

    A: We are the direct factory sice 1996,with the rich manufacturing experience.

2.Q: Can you support the technical data or advice before the customers purchase the products?

   A: We will fisrst aks you the detail technical data of your water well and then advice you the suitble products according to your well.

3.Q: How can we get the price in the short time?

   A: Before sent us your enquiry,you'd better sent us the detail technical data both your water well and your item products.For example.
       
        The OD/ Materail / Unit length / End connection . Also with the technical drawing is the best.

4.Q:Which kind of end connection do you have?

  A:We have different end connections.The welded collar,Thread ends,Flanges and also the plain beveled.

The johnson screen filter is the ideal substitute product of modern drilling industry which is also applied in hydrogeologic prospecting,well drilling,shaft sinking,reservoir precipitation ,
foundation dig precipitation ,ming & mineral processing ,geothermal exploitation ,mineral water supply, metallurgical geology,refining & petrochemical ,geothermal air-conditioner ,
broken well remediation, underground water lifting,agricultural transformation,city water supply,etc.