... passed ISO9001:2000 quality management system certifation,and exported to the USA,Japan,German,Sweden,Turkey. We,Anyang Golden Square Metallurgical Co ... passed ISO9001:2000 quality management system certifation,and exported to the USA,Japan,German,Sweden,Turkey.Vietnam,Czech Republic,Taiwan,etc. ... 5-3.0% Si44%maxWe can also produce according to your requirement.If you have any interests,please feel free ...