machina charpy fabrica ASTM E23 ISO148 JBW-C Series Computerised Pendulum Charpy Impact Testis Machina Price 300J 500J 750J Praecipua Technical Specifications: JBW-300C JBW-450C JBW-600C JBW-750C Max. impulsum navitas (J) 300 450 600 750 Effective usum scope 20% -80% F.S Pendulum ponderis (N) 214.3594 321.5391 428.7188 535.8985 Momentum penduli (N.m) 160.7696 241.1543 321.5391 401.9239 velocitas impulsum (m / s) 5.24 …