Qinhuangdao• Aotong was founded in 2004, it is a group enterprises with the collection of trade, steel further processing and warehousing logistics, the factory covers an area of 2,020,000 square meters , the main body includes three entities center - the Aotong trading center, (has seven subsidiaries) , the Aotong metal center and the Aotong logistics center. Business not only involves the medium and heavy steel plate, steel coil, section steel, building structure steel plate, steel slab and other steel products...