WAW Series Computer Controlled Electro-hydraulic Servo Universal Testing Machine They are suitable to test various metallic & non-metallic materials for tension, compression, flexure, bending and shearing strength. It is simple, easy to operate and widely used in works, laboratories and high schools for material properties R&D and quality control. Equipped with computer as well as printer, it can display, record, process and print the test results and can draw test curves automatically in real time.