1. Ductile iron casting pump parts, whether in raw material selection, casting process, or final CNC processing, we strictly follow international quality standards. 2. We at Hengrui have more than 20 years of experience in designing, producing and machining parts for Ductile iron casting pump parts. 3. Our annual output can reach 10,000 tons, 70% of which are exported to Germany, Austria, the United States and Japan.