... is 30 thousand tons annually,The products are exported to Brazil, Belgiun, Venezuela, Germany, Australia, Egypt, Sudan, South East Asian ... by foreign customers and always win a good reputation in the global market. Qinhuangdao Aotong Trading Co., Ltd is founded in ... is 30 thousand tons annually,The products are exported to Brazil, Belgiun, Venezuela, Germany, Australia, Egypt, Sudan, South East Asian ...