Structure type greenhouses: greenhouses covering a large area, a large space, the thermal effect is better, easier to build steel frame greenhouses, and low cost, is the current application of the broader protection facilities. High seedling planting bracket melon, fruit, beans and other vegetables. General than the open field can be harvested 20-40 days earlier, autumn extended the growing season about 25 days. With the development of industry and agriculture and constant innovation, new types of greenhouses and mulching will also continue to emerge, greenhouse current application, according to its steel skeleton construction of different materials used in the construction of greenhouses, which shed-type structure can be divided into wood structure steel structure and mix a variety of materials, structural wood, steel, cement and other components. Features greenhouses: the greenhouse air component. Should, where appropriate, the steel skeleton of the greenhouse ventilation design after sunrise, replenish shed carbon dioxide. In addition, the artificial fertilization of carbon dioxide concentration of greenhouse 800-1000PPM steel skeleton construction, front-to-use ventilation after sunrise. Artificial administration of carbon dioxide, in the light of weak winter and spring, the temperature is low, the yield effect is very significant. Steel skeleton sheds price | Communications Technology (certified) | Lanzhou steel skeleton sheds provided by Anyang City Communications Technology Limited. Anyang City Communications Technology Co., Ltd. (www.aytlkj.com) is Anyang, a leader in agricultural supplies, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Communications technology leadership in the staff warmly welcome all inquiries negotiations to create a better future for Communications Technology.