A285,A516GR50,A516GR60,A516GR70,A573, 20g,16Mng Qinhuangdao Aotong Trading Co.,Ltd.is a company with sell ,produce, business of timebargain, standred ... . We have been the first agent of Shougang QinBan,Yingkou Medium Plate Co.,Ltd, Tanggang. And dealing with the steel plates of Jinan ...