Corporate website is the cornerstone of enterprise road leading to the Internet , as long as a good means of this platform , any one SME can easily start an online e-commerce. To be understood , the city set up in each enterprise on the internet site, but there is no update "shell " web accounted for the majority , that is, to get information on the Internet than to get overtaken by the information furnished to do business much. City business e-commerce has a certain degree of use , but the operation is uneven , the market still has great potential . Some SMEs responsible for people's understanding of e-commerce need to be further improved, which requires government departments to promote and provide ways and channels to guide SMEs into e-commerce.

Keywords:butterfly valve ,knife gate valve,ball valve,globe valve,slurry gate valve