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Class: K8-K12 effective length: 6m when using bulk shipment way, or about 5.5m or 5.7m when in container shipment way. Internal Protection:Cement mortar lining comply with SIO4179 External Protection: metallic zinc coating (At least 130GSM) + Bitumen complying (At least 70um) with ISO8179 Nominal Diameter: DN80mm -DN1400 mm. Tensile strength: >420N/mm2 Yield strength: >300 N/mm2. Hardness: <230hb. Joint structure: T-type joint or Restrained Pipe Joint. Note: Other internal and external protections can be done as per customer's requirements. packing：bundled with steel belt price：Negotiable trademark:jigang or as per customer's requirements.