Wolpert Material Testing Machines - from the 1970s: Hydraulic Universal Testa UE, Testatron Electronic Testing Machines, Tensile Strength Testers ZRE 500, XRE 1000, Hardness Tester DIA Testor 2RC, Hardness Tester Automat, Hardness Tester Testor 300 Automatic, Hardness Tester HT 1 as, Hardness Tester Brinell High-speed Press BS300, Hardness Tester Mikro Testor, Special hardness Tester for Brinell Tests, Hardness Tester with single column and adjustable head optical head H 146, Dynatron Dynamic Testing Machine, and the Visco-Elastometer for testing non-resistant bending mater