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HiI am searching for about 1000 meters DCI pipes DN 300 mmeach pipe 6 m lenghtthey must be coated with bituminnous compound over pure zinc and internally lined with cement mortar acording to european standardspipes withstand high tensile stresses with min . 42 kg/ mm2 and elongation not less than 10 %Enternal pressure 60 barNominal diameter 300 mmExternal Diameter 326 mmcasting mortar lining 7.2 mmcement mortar lining 3 mmSpecifications standards (class K9)DI pipe EN545(part 4), ISO 2531Push -on Gasket EN681-1, ISO 4633cement lining EN 545(part 4.4.3)ISO 4179External coating EN 545 (part 4.4.1)ISO 8178 iso 2531, pipes, dci Gate valves,Butterfly valve