Supply of Procurement Of 660Mm Length Air Brake Hose Coupling For 660Mm Length Air Brake Hose Coupling For Brake Pipe Drg No. Rdso Sk- 73547, Items 1 To 7 Alt-14 Specification, 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 Color With Thickness 3.5 To 4 Mm..