LongJia can provide not only continuous slot screen or pipe base screen, but all of your pipe,centralize. Shallow screen pipe , deep screen pipe , well screen ,water well. We can provide not only continuous slot screen or pipe base screen, but all of your pipe, centralizer, sieve plate, water and gas strainer, and other accessories needed for completion and sand control. APZH well screen are manufactured by a v or wedge shaped wire around an internal array of longitudinal support rods. Each intersecting point of these wires is fusion welded. The v or wedge shaped profile wire wraps around the support rods over the full length of the screen creating a continuous slot opening, hence the screen allows water(oil) to enter your well freely in ample quantities , while at the same time keeps the majority of sand and gravel out of the well.