Nj-vx Series Portable spheroidizing rate tester can measure the spheroidization rate without damage, and provide fast ultrasonic rate detection to determine the spheroidization rate of safety parts such as automobiles. At the same time, it takes into account the reliability, performance and durability. No matter where you test, VX series spheroidizing rater is your trustworthy and hardworking partner. This innovative spheroidization meter will provide users with extraordinary experience. In the case of reference block, it is also applicable to the measurement of vermicular rate and spheroidization rate of cast iron materials, in accordance with JB / t9219 standard; it is also applicable to the sound velocity measurement of metal, plastic, ceramic, glass, glass fiber and any other good ultrasonic conductor.