Tenders for Supply of 203.2 Mm X 95.25 Mm 8 Inch X 3.3/4 Inch Bogie Mounted Air Brake Cylinder With Slack Adjuster To Rdso Drg. No..Sk.81057 Alt-11..Item No.2 With Working Stroke 40 Mm. The Cylinder Body To Rdso Sketch No 81201 Air Inlet And Exhaust Position Should Be 180 Degree Apart On Verticle Centre Line I.E. Top And Bottom Side. This Item Is Reserved For Procurement From Rdso Approved Sources Only.