Construction of a galvanized shed, similar to the structure of Greenhouse ordinary steel multi-span greenhouse, with a large space, land utilization advantages, but the cost is much lower, 50-100 yuan per square meter. 2, vegetable greenhouses covering material introduced vegetable production according to their need to choose the right vegetable greenhouses covering materials. (1) ordinary film. Polyethylene or polyvinyl chloride as raw materials, greenhouse film thickness 0.1 mm, colorless and transparent; life is about six months. (2) Multi longevity film. Adding an appropriate amount of polyethylene blow aging process materials and surfactants produced. 7.5 meters wide, 0.06 mm thick, longer life than ordinary film twice daqiuzhuang galvanized pipe shed at night than other materials Pengwen high 1-2 ℃; the film is hard to form droplets, good coverage, low cost, high efficiency . (3) grass, grass fan. Textile made with straw, good insulation properties, thermal insulation material at night. 3, to determine the direction of vegetable greenhouses should be built on a low water table, adequate water, facilitate drainage and irrigation, pollution of soil loose and fertile land; seat to the general requirements for the north-south direction, air vents located on the east and west sides. The advantage of this is that: (1) in favor of reducing greenhouse humidity; (2) to reduce the greenhouse cultivation of crops scaffolding, mutual shading among tall crops, making it the light evenly; (3) to avoid the greenhouses Winter ventilation (cooling), while operating ventilation, cooling and excessive intrusion of the north, while increasing the amount of ventilation. Development of greenhouse vegetable cultivation technology, can be said to be a trend, with the improvement of people's living standards, vegetables diversification requirements will further increase, vegetable greenhouses can compensate for the lack of seasonal vegetables, no doubt in the future of vegetable production will play an important role. Advantages of a galvanized pipe greenhouses: scaffolding smooth surface, easy to damage films, extending the life of the films. Two: easy transportation and installation of galvanized pipe skeleton shed by bending machine, shed height, curvature, shoulder height, angle can be bent. Three: vegetable greenhouse construction scaffolding tube rubber plugs at both ends, using an adhesive seal blocked completely cover the metal surface, so that the underground part of the never rust. Four: scaffolding without middle pillar, greatly increasing the cultivated area, save labor, machinery operation can increase work efficiency. Five: small investment, factories vary in size, plant 200 square meters can be, the raw material above the county level cities have. Six: high productivity galvanized pipe greenhouse, vegetable greenhouse construction shed according to the span, the wall thickness can be adjusted, three single-class production of 6000 meters. Seven: low cost, according to the shed span, small and pipe specifications are different. Eight: recyclable, third recoverable investment. Steel sheds a good vegetable greenhouses to extend the life of galvanized pipe processing shed thousands of free products _ Wing steel (certified) _ galvanized pipe shed provided by the Tianjin Steel Pipe Co., Ltd. Rong thousand. 1000-Tianjin Steel Pipe Co. (www.tjqrgg.com) is Tianjin, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the 1000-pipe leading the staff warmly welcome all inquiries negotiations to create the 1000-pipe a better future.