Pump & Valve Sources directly under the Shanghai Yi-hui,it’s main business and affiliated organization is the professional pump &valve media operators of China. We have an efficient design team owns 13 designers.about 40 full time market researchers,successful service for about 2060  industry suppliers and about high quality industry buyers.marketing covers the main area of  the south ,the east ,the west and the north of China.in the scale,the number of users and service model etc.,we are all recognized as a  high quality B2B service provider.