supply of push button (red, green & white) , push button (red), 110v dc, diameter 22.5mm, as per rdso letter no.el/7.1.108/mssbc dt. 17-09-2021 (item as per s.no.26 of annexure) along with contact block (1no+1nc). the contact block shal l have screw-type terminal connections.accepted makes:per attached specification. oem test report attach ed along with supply. [ warranty period: 30 months after the date of delivery ] ] , push button (green), 110v dc, diameter 22.5mm, as per rdso letter no.el/7.1.108/mssbc dt.17-09-2021 (item as per s.no.27 of annexure) along with contact block (1no+1nc). the contact block s hall have screw-type terminal connections.accepted makes:per attached specification. oem test report att ached along with supply. [ warranty period: 30 months after the date of delivery ] ] , push button (white), 110v dc, diameter 22.5mm, as per rdso letter no.el/7.1.108/mssbc dt.17-09-2021 (item as per s.no.28 of annexure) along with contact block (1no+1nc). the contact block s hall have screw-type terminal connections.accepted makes:as per attached specification. oem test report attached along with supply. [ warranty period: 30 months after the date of delivery ] ]