... Structure, fluid gas/ water And ConstructionEnd protector Plastic pipe cap Iron protectorSurface Treatment corrosion resistant coating,Oiled, Galvanized ... Factory is a mainly produce WATER WELL casing pipe.We have three branch company in BEIJING, GUANGZHOU AND SHIJIAZHUANG, ... company also produce Johnson screen, Johnson screen plate, screen Nozzle, well screen & water filter, Reverse rolled wire well ...