procurement of spares for m/s . indicon westfalia ltd make chair lift manriding systems:-1 boost pressure manometer (0-60 bar) - 135322 2 elastic buffer - 151129 3 seat for chair - a382737 4 carrying pulley liner - 28200130010 5 filter element for chair lift - 584209 6 depression pulley for chair - 28200150010 7 chair liner for rope - 28200430003 8 suspension with four rollers for chair- 28200430000 9 curve roller for chairlift systems - 28200300201 10 dgms approved power supply unit (110-550 vac) for pager phone – a191367/b 11 dgms approved is pager phone with handset (without power supply)– a191967/a 12 over speed tripping arrangement/device - a3c0083 13 dgms approved flpovre travel switch - a191090