tender for annual maintenance contract of avery weigh bridges and weighing scales.; 1 service and maintenance of outside weigh bridge 60 t capacity, as per sl.no.1 of scope of work ( once in two months ) ( j509ae1210 ) 2 charges for stamping and related incidental expenses for outside weigh bridge 60 t capacity ( once in a year ) 3 painting-material & labour charges for painting for 60 t capacity outsideweigh bridge, as per sl.no.3 of terms & conditions ( once in a year ) 4 unskilled labour charges for cleaning during service visit & calibration of 60 t capacity outside weigh bridge – outside ( shall be paid once in a year ) 5 service and maintenance of inside weigh bridge 60 t capacity, as per sl.no.2 of scope of work ( once in two months ) 6 charges for stamping and related incidental expenses for inside weigh bridge 60 t capacity ( once in a year ) ( j509ae1210 ) 7 painting-material & labour charges for painting for 60 t capacity inside weigh bridge as per sl.no.3 of terms & conditions ( once in a year ) 8 unskilled labour charges for cleaning during service visit & calibration of 60 t capacity inside weigh bridge ( shall be paid once in a year ) 9 service and maintenance of mechanical weighing scales capacity 1000 kgas per sl.no.4 of scope of work ( 4 visits in a year ) 10 charges for stamping and related incidental expenses of mechanical weighing scale capacity 1000 kg ( once in a year ) 11 service and maintenance of mechanical weighing scales capacity 300 kgas per sl.no.4 of scope of work ( 4 visits in a year ) 12 charges for stamping and related incidental expenses of mechanical weighing scale capacity 300 kg ( once in a year ) 13 service and maintenance of electronic weighing scales capacity 12 kgas per sl.no.3 of scope of work ( 4 visits in a year ) 14 charges for stamping and related incidental expenses of electronicweighing scale capacity 12 kg ( once in a year ) 15 service and maintenance of electronicweighing scales capacity 120 kgas per sl.no.3 of scope of work ( 4 visits in a year ) 16 charges for stamping and related incidental expenses of electronicweighing scale capacity 120 kg ( once in a year ) 17 service and maintenance of electronic weighing scales capacity 300 kgas per sl.no.3 of scope of work ( 4 visits in a year ) 18 charges for stamping and related incidental expenses of electronic weighing scale 300 kgas per sl.no.6 of scope of work ( once in a year )