DN80-2000,K12/K9, PN10,PN16,PN25 ISO2531,EN545/598 BS4772 In factory ... Double flange fitting -- high quality ductile cast iron pipe fitting1 Material : ductile cast iron pipe fitting , double flange fitting2 Coating : cement mortar lining and rich-zinc plus ... -2000mm, PN10/16/25 ,K9,K125 Inspection: In-factory, SGS 6 Package : wood case or wood pallets. double flange ductile cast iron pipe fitting