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Standard En545 Flanged Ductile Cast Iron Di Pipe for Pressurized Sewerage Systems. Customized Dimensions: Available in sizes DN80-DN2600 with customizable length and shape. Versatile Coating Options: Internal cement lining and external zinc/bitumen or epoxy coatings. Seismic Resistance: Suitable for high saline-alkali soil and seismic resistance level 8. Fast Installation: Standardized flange spacing increases construction efficiency by 60%. Strict Quality Control: 100% high-pressure water testing and third-party inspection accepted. Global Certification: ISO9001, ISO14001, ISO45001, and EN545 certified.