resin sand casting product casting casting product press roll supplier Our casting prodctivity is strong.The casting material is gray iron HT200-300 and graphite cast iron QT400-600. 1.The Resin sand Casting is one of our characteristic products, Casting productivity is strong, 2.We can provide large,medium and small mode of resin sand castings for the domestic and abroad various enterprises, 3.The casting material is gray iron HT200-300 and graphite cas tiron QT400-600.