set of condition based spares for maintenance of m s schunk metal and carbon india pvt ltd make pantograph type wbl 22 03 for 3 phase memu consisting of the list of item enclosed in the annexure warranty period 30 months after the date of delivery set of condition based spares for maintenance of m s schunk metal and carbon india pvt ltd make pantograph type wbl 22 03 for 3 phase memu consisting of the list of item enclosed in the annexure warranty period 30 months after the date of