Impact Testing 直接和间接冲击,三种型号,可改装,ASTM D 2794,ISO 6272-1,ISO 6272-2 Impact Tester Model 304 Model 304 ASTM 直接冲击,ASTM D 2794 Impact Tester Model 304 Model 304 ISO-1 直接冲击,ISO 6272-1 Impact Tester Model 304 Model 304 ISO-2 直接冲击,ISO 6272-2