... A285,A516GR50,A516GR60,A516GR70,A573, 20g,16Mng Qinhuangdao Aotong Trading Co.,Ltd.is a company with sell ,produce, business of timebargain ... been the first agent of Shougang QinBan,Yingkou Medium Plate Co.,Ltd, Tanggang. And dealing with the steel plates of ... alloy steel plates, bridge steel plate, boiler steel plate, pressure vessel steel (America Standard), shipbuilding plate an so on. The ...