... Concrete Hydraulic Compression Testing Machine ASTM E4, ASTM C39, ISO7500-1, DIN51220 YES Series Digital Display Type Concrete ... Hydraulic Compression Testing Machine1. IntroductionThis hydraulic compression testing machine is widely ... , DIN51220, etc standards. 2. FeaturesØ The main machine has two columns, compact structure.Ø Manually control the load ...