The seamless tube, in order to achieve from the outside, filtration, wire  surface can be recersed, supporting bar in the pipe, the majority of the surface Wire This combination can be.

the gap of 426mm diameter can be achieved, Width variable.

Continuous support cylinder Screen.

Through the use of a large number of supporting bar, an axial cracks can be generated. These elements has been described as a continous support cylindrical screen, Minimum Width: 0.1mm.