Cheap greenhouse, strong structure, long life plastic film, good ventilation effect. Cheap greenhouse, strong structure, long life poly film, good ventilation.1.FuntionIt's suitable for big area planting, from 720m2--20000m2, usually used to grow vegetables such as tomato, cucumber, chilli etc, or grow mushroom.2.FrameworkGreenhouse is built with hot galvanized steel pipe, 1.2/1.5mm thickness for ...