Henan tianzhiwo machinery co.,ltd are specialist manufacturers about Screens and Filters. They are widely used for water, oil and gas wells in the world. As China chief manufacturer and exporter, we export good quality water well screen to many countries. Main products cover bridge slot screen, wire wrapped well screen, stainless steel Johnson screen, water well screen, wedge wire screen, sieve bend screen, pipe base screen and sand control screen. We sincerely would like to set up business relationship with clients from all over the world in long term business.