Tenders for Supply of Pipe Asm As Per Drg.No. 10634371 Alt D Specn: Specification For Claening, Surface/ Rust Preventive, I-Mark And Packing Conditions Misc:453 Warranty Period: 30 Months After Th E Date Of Delivery Pipe Asm As Per Drg.No. 10635221 Alt C Specn: Specification For Claening, Surface /Rust Preventive, I-Mark And Packing Conditions Misc:453 Warranty Period: 30 Months After T He Date Of Delivery