203. 2 mm x 95. 25 mm Brake Cylinder with Slack Adjuster complete ( Working stroke: 32 mm ) for Self Generating Main Line coaches. Drawing No.: RDSO ' s Drg. No. SKETCH- 81057, Alt. 11, Item No. 1 of Note No. 2 & RDSO ' s Drg. No. SKETCH- 81200, Alt. 5. Material and Specification: As per Drawing and RDSO ' s STR No. C- K013 ( Rev. 1 )/ Oct. 2012.