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Quality engineering long-lasting quality


Under many years brand operating and aborative exercising,the strength and credit of company are increasing steadily,at present Su Yan has been China petrifaction group material equipment company; China petrol & natural gas group company; China Aluminum Group company and the pointing member unit of  China Sea Petroleum, metallurgy and steelmaking, electricity system. SuYan brand series valves are sold to such over 10 countries and areas, welcomed by vast customers.



We Have Provided Matching Service For Many National And Foreign Stress Projects