supply of ohk for check valve with choke kit etc. , ohk for check valve with choke kit consisting of 5 items. (1) filter item no. 2- qty /kit-1. (2) valve sealing ring item no 4-qty/kit-1. (3) compreession sring item no.6-qty/kit-1. (4) s ealing ring a 3946 item no 7- qty/kit-1. (5) choke, item no 3 qty/kit-1 to drg. rdso sk. 98111, alt. 1, items 2,3,4,6 and 7 and to appendix i spec. rdso spec.02-abr-02, amendment no 04, of sep. 201 6. rdso sk.98111, alt. 1, item 2,4,6 and 7 spec: rdso spec. 02-abr-02, amendment no 4, of sep-2016 . [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: m ax 8 lacs ] ]