... of China include Inner Mongolia,Shandong,Gansu,Xinjiang,Jilin,Heilongjiang,Sichuan,Yunnan,Fujian province etc.1.The cause of Xiamen geographical position ... .4.The production of good quality Onions is in gansu province,dry matter content,high exported to Russia,Japan,Korea and ... ,favored by the clients both at home and abroad.5.Jilin Onions of head generally small,but the quality is good ...