name: iso9001:2008 certificate of registration date: dec 20, 2010 valid until: dec 19, 2013 range: copper, aluminum and alloy manufacturing, drawing
and stranding equipments reference: iaf
name: patent certificate date: mar 05, 2008 valid until: mar 04, 2018 range: casting wheel of ccr reference: intellectual property office of the people's
republic of china