Check if this is a fraud web site!

I have three websites that I'm wondering if they are a fraud or not.
Both sites gave me offers to but Game Consoles with attractive prices.
Please help me understand if this is a fraud or not:

http://easttech-china.com - No answer for number on site

http://www.yiyuang.com/ - number on site is out of service

http://www.2011fuyu.com/

Any information will be useful
Thanks everyone.