Pass successfully ISO9001:2000 More than GB5149-2004 standard Liaoning Guoxing Metal Material Co., LTD, is professional produce all kind of magnesium products. eg magnesium poweder , magnesium ingot, magnesium ingot end,passivated magnesium powder,Magnesium shavings,etc.Customers are welcome to call us or write me e-mail,your satisfaction is our greatest pursuit! Look forward to hearing from you. ...