... PT,etc as per the different standards.During 2006 to 2008,we successively had had our quality system audited ... conforming to ISO9001 by IAF,welding quality system audited conforming to ISO3834-2 by IIW,manufacturing ... and abroad.the part os products have been exported to EUROPE and AMERICA,JAPAN,SOUTH ASIA AND SOUTHEAST ASIA ... is USD5,000,000.00. ISO9001 ISO3834-2 metal gear