Greenhouse covering material: 1, shade net: a plastic woven mesh. Commonly used two kinds of black and silver, and several kinds of Greenhouse density specifications simple design, shading rate varies. Mainly used for summer shade rain, but also for winter insulation covered with. 2.Nonwoven: as a polyester filament yarn, woven textile fabric without substance. Minute black and white, and has a different density and thickness of Greenhouse simple, except for the outer insulation is also often used as a shade net. Features greenhouses: the greenhouse air component. In the low season summary of Greenhouse plant, greenhouses often sealed insulation, it is easy to accumulation of toxic gases, such as ammonia, nitrogen dioxide, sulfur dioxide, ethylene and other harm. When the ammonia reaches 5PPM greenhouse, the plants will produce water-soaked spots on the blade tip, and then black dead; when nitrogen dioxide reached 2.5-3PPM, the occurrence of irregular green and white leaf spots, in addition to serious vein, the whole Leaves are bleached. Simple design of Greenhouse | Communications Technology | Taiyuan summary of Greenhouse provided by Anyang City Communications Technology Limited. 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_43598310.html), for more information about the company.