Leveraging our company's core technologies, we jointly developed and manufactured 16V280 internal combustion engine bimetallic exhaust valves and integrally strengthened intake valves in collaboration with CRRC Ziyang Locomotive Co., Ltd.

In June 2004, the product successfully passed the diesel engine type tests (comprising a 100-hour performance test and a 360-hour endurance test) established by the European railway authorities. It is currently widely used in the 240 and 280 series diesel engines of railway locomotives. We are presently supplying engine fastener samples—including connecting rod bolts, cylinder head bolts, and main bearing bolts—to Ziyang Locomotive.