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Long-Term Reliable NSF Certified Ductile Iron Pipe for Food Industry. 50-100 Year Lifespan: Service life of 50-100 years with cement mortar lining and anti-corrosion treatment. Customized Dimensions & Pressure: Diameter DN80-DN2600 and pressure PN10-PN25 are customizable. Multiple Joint Options: T/K-type socket, flanged, and restrained lock-joint available. Global Certifications: ISO 9001, ISO 2531, EN 545, GB/T 13295, AWWA C151, NSF, CE, WRAS. Advanced Anti-Corrosion: Zinc + bitumen/epoxy coating with 100-year lifespan verification. 1 Year Warranty: Comprehensive 1-year warranty coverage for mechanical defects.