تأثير آلة الاختبار JBW 300 The JBW – 300 impact testing machine is commonly used in material science and engineering to measure the impact resistance of materials. Here are some of its main applications: 1. Metallurgical industry Quality control of metal products: It can test the impact toughness of various metals such as steel, الألومنيوم, and copper. فمثلا, في …