MLS of four technicians operating extrusion press. CU of door of kiln opening, man inserting tray of mineral samples. MS of man using horizontal microscope. CUs of technicians operating compressive testers. CS of unit of Froth flotation circuit in motion separating mineral contents in solution. CU of metal rod being inserted in head section of extrusion press, ram pushing metal in, DOLLY SHOT along press to extruded metal coming off machine. Shot of woman taking finished photograph from dryer. CU of photomicrograph of grain structure.