The main types of greenhouses: Greenhouse. Greenhouse insulation. Greenhouse insulation composed of two parts, structure and activities of the insulation envelope insulation was. Front slope of insulation material should use a flexible material is easy to put away after sunrise greenhouse construction steel company, down at sunset. For research and development of new front roof insulation material is mainly focused on the ease of mechanized operations, cheap, light weight, anti-aging, require water and other indicators. Greenhouse construction site: ventilation. Greenhouse wind resistance, and other protective equipment Yangqi difference steel greenhouse construction, but also often ventilation, if built in the nest where the wind pipe greenhouses, is not conducive to greenhouses ventilation, hinder the growth of vegetables. Greenhouse construction is necessary to avoid the draft, but also to choose a well-ventilated place. Soil conditions. A variety of vegetables on soil conditions have their own choice and requirements. St. steel shed costs _ _ Xin Hunan Agricultural 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.