FURNISHING-AND-DELIVERING-SODIUM-HYPOCHLORITE
FURNISHING-AND-DELIVERING ALUMINUM HYDROXIDE-CHLORIDE
FURNISHING-AND-DELIVERING(Thioguard) MAGNESIUM-HYDROXIDE-SLURRY
REMOVAL-TRANSPORT-AND-DISPOSAL-OF-SAND-GRIT-AND-BAR-SCREEN-SCREENINGS
FURNISHING-AND-DELIVERING-DRY-POLYMER
ELECTRICAL-MAINTENANCE-SERVICES
FURNISHING-PUMP-AND-MOTOR-REPAIRS-AND-PURCHASE-OF-NEW-PUMPS-AND MOTORS
FURNISHING-AND-DELIVERING-EMULSION-TYPE-POLYMER