... widely used in pipelines to convey potable water, sewage water, agricultural or industrial water, gas, etc. Recently, there has ... :Ductile IronType:SeamlessSpecification:DN80~DN1600Thickness:5-500mmUsage:Supply water projectquaility control:BV and ISOcolour:black,red,blueaccessories: ... coating and then bitumen coating according to ISO81793) inside cement mortar lining according to ISO41794) 100% SBR ...