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Durable Cast Iron Mold for Residential Pipe Production Lines. Premium 21CrMo10 Material: Made from high-grade 21CrMo10 steel for superior thermal fatigue and wear resistance. Wide Size Range: Available in sizes from DN80 to DN2600, including water-cooled and thermoformed options. Strict Quality Control: ISO 9001 certified with 7-stage manufacturing control and 100% ultrasonic flaw detection. Customization Support: OEM/ODM available; molds can be customized based on technical drawings or samples. Robust Packaging: Anti-rust oil, moisture-proof film, and heavy-duty wooden crates with steel strapping. 22 Years Experience: Established in 2003 with extensive expertise in ductile iron pipe mold manufacturing.