For years, the products of the Company have passed at a time the spot check by National Center for Quality Supervision & Testing of Relay & Protection Equipment.

Suppliers selection, quality of articles and materials check on, review the purchasing plan of production chemicals, test chemicals (and materials), nutrition chemicals, equipment spare parts etc.

The project quality mainly depend on the measures of afterwards check and correct, and the quality control excessively relies on the design department and the equipment supplier;