
Top-Grade Mold Machine for Ductile Iron Pipe Manufacturing. Customized Manufacturing: Full customization available based on technical drawings and samples. Premium Material Quality: Constructed from 21CrMo10 steel with superior thermal fatigue resistance. Wide Size Range: Available in sizes from DN80 to DN2600 and lengths over 6 meters. ISO 9001 Certification: Factory certified with ISO 9001:2015 for consistent quality management. Comprehensive Quality Control: Includes 7-stage manufacturing control and 100% ultrasonic flaw detection. Robust Packaging: Features anti-rust oil, moisture-proof film, and heavy-duty wooden crates. 22 Years Experience: Over two decades of manufacturing experience in deep hole and long shaft products. Fast Technical Response: Engineers provide detailed solutions within 24 hours of receiving drawings.