... parts. Stuff of 500 people, annual production more than 15 thousand tons, with ISO90000:20000 ... certification,, products exported to France ,Germany, Italy, USA and other countries, won national award of ... Nodular Cast Iron Mechanical PropertyMaterial DesignationStrength of ExtensionYield StrengthRate elongationBHMetallographic StructureQT350-22L35022022≤160ferriteQT350- ...