The vegetable market in Dawang Town, Huyi District is 50 meters to the east. Shed film is a special plastic film used for protective agricultural production and construction, and its light transmittance, heat preservation, tensile strength, aging resistance and other properties are better than ordinary agricultural films. Xi 'an Plastic Film Wholesale Market is located 50 meters east of Dawang Town Vegetable Market, Huyi District, Shaanxi Province. Xi 'an, referred to as "Gao", was called Chang 'an and Haojing in ancient times. It is the capital of Shaanxi Province, a sub-provincial city, a megacity, the core city of Guanzhong Plain urban agglomeration, and an important central city in western China determined by the State Council.