1. The D. I pipes are according to ISO2531 or BS EN545, BS EN598, BS4772, L= 6000 mm ?30 mm , Class K9, T type joint, Cement mortar lining acc. to ISO4179, outside Zinc painting (200g/ m2) + bitumen (100 micron) painting acc. to ISO8179 and BS3416. And also other special lining and coatings, such as Polyurethane, Polyethylene, Cerimic Epoxy, Red Epoxy etc 2. Gaskets will be supplied along with pipes according to ISO4633. And we can supply 4 kinds of gaskets including NBR rubber, Natural rubber, SBR rubber or EPDM rubber. 3. Packing: Diameter<300 mm (including 300 mm ) are bundled with steel belt, other sizes in bulk.