supply of procurement of rubber kit for a9 auto brake valve consisting of eight items:- 1) diaphragm 3.1/4procurement of rubber kit for a9 auto brake valve consisting of eight items:- 1) diaphragm 3.1/4,rubber kit for a9 auto brake valve consisting of eight items:- 1) diaphragm 3.1/4 -wabco pt no- 526346-qty/kit- 1, 2) o ring 3/4 od-wabco pt no-564056- qty/kit-1, 3)o ring 1 5/16 od-wabco pt no- 524614-qty/kit-1, 4)o ring 1.3/8 od -wabco pt no- 526388 - qty/kit-1, 5)seal valve - wabco pt no-557396 - qty/kit- 1, 6)gasket pipe bracket - wabco pt no-560009 -qty/kit- 1, 7) o ring - wabco pt no-531868 - qty/kit-2, 8)o ring 7/8 od -wabco pt no- 523734 - qty/kit-2. [ warranty period: 30 months after the date of delivery ]