Our products have passed ISO9001:2000 quality management system certifation,and exported to the USA,Japan,German,Sweden,Turkey. We,Anyang Golden Square Metallurgical Co.,Ltd,was found in 1995,Our products have passed ISO9001:2000 quality management system certifation,and exported to the USA,Japan,German,Sweden,Turkey.Vietnam,Czech Republic,Taiwan,etc.please check the specification of our products ...