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process for the manufacture of a piezo electric ceramic material of the type of pb (mg (1 / 3) n (2 / 3)) 03 - pbti03 - pbzr03 and object.that all or part of this material is ceramic.
process for the manufacture of a piezo electric ceramic material of the type of pb (mg (1 / 3) n (2 / 3)) 03 - pbti03 - pbzr03 and object.that all or part of this material is ceramic.
