We Are: Metals Kingdom Industry Limited(Sincere Union Imp & Exp Co.,LTD) is located in Baoding New Technology Development Zone,we are a professional metal and chemical supplier ,which has several joint-factories.With advanced production lines and quality control system ,GMP Authentification,Feed Authentification,ISO9001,ROHS,ISO14000 and etc .Sincere service and more than 11years of rich experience,we have got high reputation from the customers both in domestic and foreign markets. We Sell: Zinc...