Established in 2007, Taian Shelley Engineering Co., Ltd, located in Great Wall Street 96, Taian city, Shandong province, China, which is one of the most professional supplier of steel farm and commercial storage bins/silos. Life circle of the products is 20-50years. Our products are completely complying with the national standard of GB50322-2001 The Grain Code of Silo Design and have reached the advanced quality levels in performance.