бутлуур угаах систем. cement raymond mill нийлүүлэгч · The period of the East's greatest territorial expansion came under Genghis Khan, who built up the world's largest contiguous empire, the Mongol Empire, in the early 13th century.From its capital in modern day Beijing, Kublai Khan (Genghis Khan's grandson), ruled much of the Eurasian land mass. үнэ