We provide Tender Bidding Support for Supply of Isolating Cock Olp Type For Location Other Than Brake Cylinder Ball Type For Air Brake Passenger Coaches To Rdso Drg. No. - Sk- 97002, Alt.- 2 This Item Is Provided On The Feed Pipe Branch Line Before The Air As Well As On The Feed Pipe Feeding To Bp & Peav, With Conforming To Rdso Specn No.- 02-Abr-2002, Read To All Amendment With Latest Amendment No. 4 Of Sept.- 2016, Appendix- I.