HAMSs of men at work on extrusion press. HAMS of man fastening toggle on top of centrifuge. HAMLS of technicians at work in experimental foundry. Rear CS of man inserting extruded piece of metal in Rockwell hardness tester. CU of vise apparatus of tensile strength tester. CS of gauge being adjusted, of metal being inserted in amsler tensile tester. Shot of tensile tester testing new magnesium casting, PAN to two technicians operating machine. HAMS of Tukon micro-hardness testing machine. CS of man lifting pyrometer, taking temperature of Remmy furnace, noting down results.