Anyang Tengda Greenhouse Engineering Co., Ltd. is specialized in greenhouse engineering and steel structure design, production and installation. Covered by plastic film shed body generally called greenhouse, it is a semi-circular shape. Because of China's vast land, there are different names, such as: vegetable greenhouse, shed, spring greenhouses, cold shed, simple shed, steel sheds, greenhouses and other steel fabricated. The main purpose is vegetable cultivation, planting grapes, 20 days ahead of the spring growing season, autumn longer growing season about 40 days.