JBW-300 Computer Pendulum Impact Test Equipment Application & Features: JBW Series Computer control Pendulum Impact Testing Machine were strictly designed according to national standard GB/T3038-2002 “ Inspection for pendulum Impact Testing Machine” and GB/T229-1994 “Charpy notch Impact Test Method for metal material”. It is also accordance with international standard ISO148-1983,ASTM E23 and EN10045. It is mainly used to determine the …