At DOKA, we’re not just manufacturers—we are integrators of technology and enablers of value. Our flexible production lines manufacture nozzles, plungers, and delivery valves simultaneously, while our comprehensive in-house capabilities span simulation design, bench validation, assembly tuning, and environmental condition testing.

With over 1.2 million units installed annually, our DOKA brand has ranked among China’s top three in core internal combustion components for three consecutive years—a testament to our market trust and system integrity.