Electronic apparatus for testing compression, strength, hardness and tensile characteristics of industrial materials; Metal compression testing machines, Metal hardness testing machines, and Metal strength testing machines, all with or without clamps for clamping of materials; Ultrasonic instrumentation for testing machines, Electrotechnical vibration meters; Nondestructive testers, namely, ultrasonic testers and computer hardware and programs in support thereof, all for use in testing materi...