Ductile Iron Pipe - (dn500)

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