BUTLER

CONCRETE MIXING PLANTS; PLANTS FOR BULK HANDLING OF STONE AND SAND; SMOOTH WALL BINS, HOPPERS AND TANKS FOR SUCH PLANTS; BIN GATES FOR THE AFORESAID BINS, HOPPERS AND TANKS; CEMENT AND AGGREGATE BATCHING EQUIPMENT, INCLUDING CONVEYING SYSTEMS AND BLOWING SYSTEMS THEREFOR; AND CONTROLS FOR THE AFORESAID PLANTS AND EQUIPMENT