tender for supply of various pipes to ptps, panipat , pipe metallic, nominal size: 80 mm, schedule/wall thickness: 4 mm, material: mild steel, end connection: plain, surface finish: black indian standard: is 1239 part (i) length: 6-7 meter , pipe metallic, nominal size: 100 mm, schedule/wall thickness: 4.5 mm, material: mild steel, manufacturing process: erw end connection: bevel, surface finish: black indian standard: is 1239 medium length: 6-7 meter , pipe metallic, nominal size: 150 mm, schedule/wall thickness: 4.8 mm, material: mild steel surface finish: medium black indian standard: is 1239 part (i) , pipe metallic, nominal size: 100 mm, schedule/wall thickness: 5.4 mm, material: mild steel manufacturing process: electric resistance welded end connection: plain, indian standard: is 1239 medium length: 6-7 meter