Guanxian, kelan county, the original equality. Hemp seed (hemp seed) is the seed of hemp of Moraceae, and sesame oil can be obtained after pressing. It is a traditional food in Shanxi, Shaanxi and other places. It is rich in Pianguan County, kelan county, Yuanping City and Xinfu District of Xinzhou City. The oil extracted from Fructus Cannabis is rich in nutrients such as protein, unsaturated fatty acids, lecithin, etc., and has the functions of moistening intestine and relaxing bowels, nourishing yin and tonifying deficiency, moistening dryness and relaxing bowels.