TheGreenBook_SG's JumboTweets
- Do you know what #valve is? I am not talking about the gaming company but the #device that regulates the flow of water in our home water system. The importance of #valves may not be something we make ourselves familiar with but they sure play a vital role in our everyday lives. Know more about our friendly valve device on http://www.thegreenbook.com/valves.htm
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