Toly Electric strictly controls the quality, relying on advanced testing equipment and scientific testing process, check at each level. Toly focuses on three links including the raw materials inspection, process product inspection and finished product inspection three links, to build a firm "Great Wall of quality".

The testing equipments can cover the testing of mechanical properties, electrical properties, thermal properties and chemical properties. They have inspection capability for winding wires used for transformers, high-speed railway transportation traction transformers, and wind power generation, special large motor and electric vehicles, superconducting cables.

In each production process, there is online detection device. It can effectively intercept the occasional defects, and improve the pass rate of the first acceptance.