U-CHANG quality first priority of machine part technique establishes an enterprise in the mother`s womb and the farm machine parts and the automobile part, from the various machinery and tools parts the place charging with technical power of top, is doing. Also according to change of the market environment which changes suddenly respects the management innovation which is continuous and a quality system 100% the quality trust! Value! Acquired the thought lower part various international quality specification authentication which is and in quality management of top and with the system which becomes the system endeavored came.