... 2.Used to make V-notch and one U-notch for impact test specimen. Application & Features:This machine adopts hydraulic drive ... as ASTM E23, ISO148,ISO083 and so on.With experience for many years, at present, hydraulic electric notch broaching machine is ... assure its high rigidity, good wearable. Each broach can machine sample 20000 times.Each broach can process as many as 20 ...