Tenders for Procurement Of 660Mm Length Air Brake Hose Coupling For 660Mm Length Air Brake Hose Coupling For Feed Pipe Drg No. Wd-81027-S-01, Alt.14 Specification No.Appendix-F Of Spec.02-Abr.02, Amendt.No.4 Of Sep.2016. Special Condition: Ensure That The Plastic Dummy Cap Shall Be In Red Colour With Thickness 3.5 To 4 Mm..