Shed the history and function: 1957 by Beijing to promote the use of Tianjin, Shenyang and Northeast China, Taiyuan and other places, welcomed everywhere. 1958 our country has been able to produce their own agricultural polyethylene film, which shed vegetable production has been very widely covered. The mid-1960s has been shaped to shed about one meter arch, high, wide and 1.5-2.0 m shed new composite materials manufacturers, so called small shed. Because of the little shed-type cold areas not suitable for use in the Northeast. Features greenhouses: the lighting conditions. Different shed a great impact on the greenhouse-type structure by light, double mulch though better insulation properties of new composite materials shed prices, but shed the light conditions comparable reduction monolayer films cover about half. Besides the construction of new composite materials greenhouses, multi-span greenhouses and sheds built using different materials for the light also have a huge impact. Building with steel and hard plastic greenhouses single structure the light is better, only 28 percent light transmittance dew reduced. Townhouse shed by poor light conditions. Therefore, the material used to build the shed when can withstand a certain load, should try to use lightweight materials and simplify the structure, we can not be affected by light, but also protect the rugged, economical and practical. Shed new composite materials offer, Communications Technology, Chengdu shed new composite materials provided by Anyang City Communications Technology Co., Anyang City Communications Technology Co., Ltd. (www.aytlkj.com) (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. You can also access (www.aytlkj.com/supply_details_39675110.html), for more information about the company.