PRETREATMENT SCREENING MACHINES PENSTOCKS, SLUICE GATES AND VALVES SUBMERSIBLE PUMPS PENSTOCKS, SLUICE GATES AND VALVES WASTEWATER SCREENING SCREW SCREEN BAR SCREEN STEP SCREEN ROTARY DRUM SCREEN STATIC BAR SCREEN ARC SCREEN STATIC BAR SCREEN SCREENING COMPACTORS COMBINED TREATMENT GRIT AND SAND TREATMENT GRIT SEPARATOR AND WASHER GRIT CLASSIFIER SLUDGE AND SCREENING CONVEYORS SCREW CONVEYOR CONVEYOR BELT