Used Laboratorio Elettrofisico Walker LDJ Scientific Automatic Magnetic Hysteresisgraph, Model AMH-300. DC automatic measuring system for characterization of hard magnetic materials. With two flux meters, Code 0FW00-0124, serial# W00000080, CE stamped, (1) Unimec Electromagnet Type TPR 183, model B, 1/5 ratio, serial# 11/4546.