I'm Joanna sun from  China hengshui  guangxing screen
We offer wedge wire well screen as the following : 
Slot size (mm) : 0.1, 0.15 ,0.2, 0.25,0.3---3mm
Open area: up to 10%--60%
Material : low carbon , low carbon galvanized (LCG) steel treated with plastic spraying , stainless steel ( 304 or 316L) 
Length : only well screen up to 6m , screen with perforated pipe up to 13 m 
Diameter : ranging from 4 inch to 18inch . 
End connection : Plain beveled ends for butt welding or threaded