Greenhouse: With polymer - PVC, polyethylene produce steel shed construction prices, plastic films are widely used in agriculture. Greenhouse vegetable production was originally dedicated equipment, along with the development of greenhouse production applications become increasingly widespread. Greenhouse uses: forestry nursery for trees, ornamental trees and other cultures; for sericulture farming, chickens, cattle, pigs, fish and fish fry. Structure type greenhouses: layered canopy cover is then covered with a layer or layers of film, performed within the cold, commonly known as the two-story screen. The two-story curtain opened the day by light at night and then covered with strict insulation. Interval steel shed and greenhouse film's two-story curtain installation, usually 30-50 cm. In addition to the two steel sheds outside the curtain, the canopy cover is also a small shed and mulch, etc., covering the use of thin-film multilayer polyethylene film thickness of 0.1 mm, thickness of 0.06 mm or silver reflective film, 0.015 mm thick polyethylene film. Quality steel sheds, St. Xin Agriculture (certified), Baoji steel shed by Anyang City of St. Xin Agricultural Technology Services, LLC. Anyang City of St. Xin Agricultural Technology Services, LLC (www.aysxny.com) in Henan, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In St. Xin agricultural leadership with the staff warmly welcome all inquiries negotiations to create the holy Xin agriculture a better future.