HPhttp://www.hp.com.cn/companyinfo/1.aspdellhttp://www1.ap.dell.com/content/topics/topic.aspx/ap/corporate/zhcn/factsheet/index?c=cn&l=zh&s=corp&~section=006国美电器http://www.gome.com.cn/aboutus/index.jsp沃尔玛http://www.wal-martchina.com/walmart/history.htm#us