Valve oil, chemical, power station, long distance pipeline, shipbuilding, nuclear industry, a variety of low temperature projects, aerospace and marine oil and other economic sectors indispensable fluid control equipment. After 20 years of development, China is about 6000 companies of all sizes valves are more than the number of firms in the world first, in which more than 5 million yuan annual output value there are 900.

From the product point of view, China