Uri uri = new Uri(catalog_item.Key);
string html = new WebClient() { Encoding = System.Text.Encoding.UTF8 }.DownloadString(uri);
CQ cq = CQ.Create(html, Encoding.UTF8);
var body = cq.Find("body");
foreach (var table in body.Find(".kingda_tabs_wrap").Add(".table_5"))
{
Console.WriteLine( table.InnerHTML.ToString() );
Console.ReadLine();
}