Brake cylinder 300 mm for Brake Van for Freight Stock. Drawing No.: RDSO, s DRG. NO. WD- 92051- S- 11 Alt. 3, Item 1 to 15 & 17 in assembled condition. Material and Specification: As per Drawing and conforming to RDSO % u2019s Spec. No. 02- ABR- 02 with Amend. No. 4 of Sept. 2016.