首页>
外国专利>
Pressure Spring for piston Rings with a piece of elastic Barbs to distribute the pressure of the Rings or segments in combustion Engines, diesel engines and semi diesel,Aircraft Engines and the like.
Pressure Spring for piston Rings with a piece of elastic Barbs to distribute the pressure of the Rings or segments in combustion Engines, diesel engines and semi diesel,Aircraft Engines and the like.