A hydraulically driven reciprocating pump. The refractory system is assembled within a steel containment shell to provide a high temperature electrolysis cell. A current mirror circuit is selected in accordance with an operation, and at the same time, the initialization condition and the rewriting condition are changed in accordance with the operation by a control mechanism of the reset current in a voltage selection circuit and a current mirror circuit. The substrate is then passed through a nitrogen purge chamber having a dew point kept at 100 C. In turn, these leads can be received by a plurality of contacts that are deployed on the mounting plate. The intermediate strengthening layer functions as a buffer between any air bubbles remaining in the concrete substrate layer and the ornamental facing layer following curing of the product.