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cast iron class GOOD Machinery Manufacturing Co,Ltd is a professional manufacturer to produce iron casting products.We produce ductile iron ,gray iron,ADI casting products as well as abrasion resistant materials.We have exported for many years,so have enough experience for exporting.Now we have ductile iron pipe fitting,gray iron pipe fitting,handwheels,vibration products.We have all the casting materials,so we can manufacture according to your drawings or samples. Advantages: 1.90% for exporting especially for JAPAN and USA 2.all casting materials 3.ISO9001 certificates control 4.JIS,ASTM standard 5.let's cooperate now EARLY RUNNING,EARLY BLOOMING!