We recommend, if only column marks a slight break can be taken aside additional reinforcement in its approach to maintain short column. In addition, Shenyang greenhouse cost, no column for greenhouse terms, with the increase of its useful life, these greenhouses skeleton prone to distortion, it is recommended to add the corresponding column in the shed position, prop deformed skeleton. Greenhouse covering materials: 1, ordinary film: polyethylene or polyvinyl chloride as raw material, film thickness of 0.1 mm, colorless and transparent. Life of about six months. 2, multi-functional longevity film: is adding an appropriate amount of polyethylene blow molding process aging material and surfactant material. Multifunctional membrane, width 7.5 m, thickness 0.06 mm, more than double the ordinary life of the film longer than other materials at night Pengwen higher 1-2 ℃. And the film is hard to form droplets, coverage, low cost, high efficiency. 3, grass, grass thatch: textile made of straw, good insulation properties, the cost of agricultural greenhouses, night insulation. 4, high-foam polyethylene film: white multi-bubble plastic film, width 1 m, 0.4-0.5 cm thick, light can be rolled up, and the grass is similar insulation. 5, non-woven fabrics: as a polyester filament yarn, woven textile fabric without substance. Minute black and white, and has a different density and thickness, common specifications 50 g / ?, except outer insulation is also often used as a shade net. 6, shade nets: a plastic woven mesh. Commonly used in black and silver two kinds of greenhouses cost, and several kinds of density specifications, shading rate varies. Mainly used for summer shade rain, but also for winter insulation covered with. Greenhouse cost, Tianrun vegetable wholesale, ordinary greenhouse Cangshan County Tianrun cost by the cultivation of professional cooperatives. Greenhouse cost, Tianrun vegetable wholesale, ordinary greenhouse cultivation cost is Cangshan Tianrun cooperatives (www.tianrun8.net) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: Sun Jinhu.