Changzhou Chunyan Machiney Parts Factory was founded in 1992, which has been expanded to the leading single wall high frequency weld tube manufacturer in China now, yearly steel tube for refrigeration productivityis about 50000Ton. The products have being recognized in the market by advanced quality and good credit.
The main products in our company are  single wall high frequency weld tube and copper coated tube.Products are widely used in refrigerator, automobile pipeline, Compressor, high-pressure conduit,etc. We provide products for many famous refrigerator factory, freezer factory, and compressor factory in China and oversea.

Many products have been export to Europe, America, the Middle of East, Africa and South-East of Asia.

The company has always been "top-ranking management, top-ranking products, top-ranking service, top-ranking reputation" for social sincerely, a guide to the advanced management ideas and harmonious atmosphere for business, to create "ao long" brand, to create a high starting point, high standard of modern enterprises, to accelerate regional economic development make a positive contribution.