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ATD is a well reputable manufacturer of producing engine valves, seats and valve guides with more than 30 years history in China. Customers' needs are our priority, pursuing the best quality and on going innovation of our patented technology, we have continuous growth partners in global. we can offer inlet and exhaust valve for the engine applications running on Gasoline, Diesel, Natural Gas, Marine Diesel Oil and Heavy Fuel. We have developed special seat coatings to extend component's life. We use Nimonic, Inconel, steels, lron-based alloys. Titanium and Titanium Aluminides, Engine valve manufactured from these alloys can be welded with Stellite, Triballoy. Colmonoy. Our products applicate in the following makets: ● Heavy duty diesel, ● Marine, ● Locomotive, ● Coal mine gas power plant ● Biogas power plant ● Mining and construction machinery ● Automobile