Product Description JBW-300B Computer Control Automnatic Metal Charpy Impact Testing Machine 300 j Brief Introduction JBW-300 computer control impact testing machine is ideal testing equipment , it is used to measure the metal material to resist impact loads under the dynamic properties. It can meet GB/T229-2007 <<metal Charpy notched impact test method>>, JJG 145-2007<<pendulum impact testing machine test procedures>>, ASTME23<<metal …