Valve flow coefficient and cavitation coefficient is an important valve parameters, which are generally available in the advanced industrial countries, the valve material, even in the sample also printed. China's production of the valve is basically no information in this area, because access to this information need to do experiments can be made, this is our country and the world's advanced level of the valve one of the important performance gap. Valve flow coefficient and cavitation coefficient is an important valve parameters, which are generally available in advanced industrial countries, valve information, and even printed in the sample also. China's production of the valve is basically no information in this area, because access to this information need to do experiments can be made, this is our country and the world's advanced level of the valve one of the important performance gap. ?
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