procurement of flange and rubber coated asbestos gasket for coal pipe of 8.5 e-9 coal mills for unit no. 1 to 4, at sgtps, mppgcl, birsinghpur. , rubber coated asbestos gasket , specification of coal pipe of size 630mm: id-630mm, od-820mm, thickness-5mm, 16 nos. hole of dia. 26 mm on 756 pcd , specification of coal pipe of size 433mm: id-460mm, od-610mm, thickness-5mm, 16 nos. holeof dia. 26mm on 542 pcd , specification of spool piece of size 450mm: id-453mm, od-640mm, thickness-5mm, 16 nos. holeof dia. 25.5mm on 590 pcd , suitable for p.f. dischargepipe & bends: id-461mm, od-616mm, thickness-5mm, 16 nos. holeof dia 26 mm on 746 pcd , suitable for p.f. dischargepipe & spool piece: id-500mm, od-680mm, thickness-5mm, 16 nos. holeof dia. 32 mm on 617 pcd , coal pipe flange , coal pipe flange size:- od-825mm, id-630mm, thickness-25mm, 16 nos. holeof dia. 26 mm at 756 pcd material: ms-is2062 (weldable) , coal pipe flange size:- od-610mm, id-457mm,thickness-25mm, 16 nos. holeof dia. 26 mm at 542 pcd material: ms-is2062 (weldable) , coal pipe flange size:- od-640mm, id-485mm, thickness-25mm, 16 nos. holeof dia. 25.5 mm at 590 pcd material: ms-is2062 (weldable) , coal pipe flange size:- od-614mm, id-465mm, thickness-25mm, 16 nos. holeof dia. 26 mm at 543 pcd material: ms-is2062 (weldable)