greenhouse characters: adopts hot-galvanized thin steel structure,can separates 1 span but 2 steeple, 1 span 3 steeple,1 span 4 steeple technology datas: covering materials:top PC plate or wave palte,surround use PC plate or other covering materials span:6.4m/8m/9.6m/10.8m/12m/12.8m/16m eaves height:3-8m column space distance:4m/8m roof vent:2 sides set roof vent side window:rack outside window,pull-push window,electric vertical push window matching equipment:by greenhouse different needs use different matching equipments greenhouse characters: 1 span can several steeple ,this greenhouse have small roof,and many gutters,big span etc characters,inside can flexible set cutting 2 have a good light transmittance,and have inside illumination average etc characters. 3 have very good discharge water ability,so can big area make span 4 aluminum alloy materials and special use connection fittings,outside have beautiful appearances 5 also have dew-proof function,under gutter set dew collection tank,when collection full ,can guide it to bottom of greenhouse,reduce pets and disease 6 keep warm ability compare with single layers greenhouse,in winner can save many fuel,but light transmittance worse than single layer glass 7 inside bright and spacious ,have big operation space,high useing rate