Figure 5. Digital Rock-Well hardness tester

From

The Effects of Magnetic Resonance Imaging (MRI) on Some Properties of Acrylic Resin Denture Base Materials

Amer A. Taqa, Ammar Kh. Al-Noori, Ahmed Issam Jasum Al-Khyaat

American Journal of Medical Sciences and Medicine. 2013, 1(4), 62-65 doi:10.12691/ajmsm-1-4-3