International second and third line brands. MD is Italian cheap luggage brand MandarinaDuck. MD is an international second and third line brand. MandarinaDuck was founded by PaoloTrento and PieroMannato, two good friends. Italian Yuanyang tried multi-color scheme, broke through the use of conventional materials, and openly challenged the comparison between natural trends and commodities, making Italian Yuanyang's products particularly innovative at that time.