... --1200 T-type 6 meter 3.zinc spraying, bitumen coating,cement lining ,epoxy 1) Standard: ISO2531, BSEN5452) Effective length ... DN80-DN1200 6M by bulk shipment,5.7M by20'or40’container;3) Inner cement: Ordinary portland cement according to ISO4179, sulphate resistant ... be covered with rubber or other similar material for protecting cement lining layer. Especially for pipe with relative large diameter ...