... .Material: ductile iron, grey iron 3. Weight: 0.1-150KGS castings industrial parts 1.Material: ductile iron, grey iron, steel, under ... have ISO 9001-2000 certification. Compared with other companies, our castings are almost no casting defects, no shrinkage, no porosity, no ... requirements. We make according customer's drawings or samples. Our castings are under strict QC and in a quick delivery, welcome ...