Sand for gravity sand filter

Supply of sand for preparation of sand cartridge for use of blasting purpose in 5/6 incline and 7/8 incline at rajnagar ro colliery of hasdeo area.

Gravels size 1-6 mm for gravity sand filter,gravel for gravity sand filter

Making of ci gland, brass bush and stud bolt for use at u/g for khottadih colliery

Filtering sand, size - 16/32 for auto valveless gravity filter,anthracite, size- 0.8-2.3 mm for auto valveless gravity filter

Construction of 6 nos rcc sectionalisation stopping and repairing of 116 nos. old ventilation stopping and 35 nos. old sectionalization stopping by use of fly ash brick for 10b seam at west jhagrakhand colliery.

Maint. of elect. water supply, hvac inst. inc. maint. to drdo tech., supply of potable water for use of tf, prov. of clrng of desert sand from boundary wall of drdo tf, camc of epabx, online ups sys. inst. at drdo tf and cvrde cell at mffr suratgarh

Supply of sand in use as steaming material at piparia colliery, umaria sub area, johilla area

Supply of sand to use as steaming material at piparia colliery, umaria sub area, johilla area

Supply of sand to use as steaming material at umaria colliery, umaria sub area, johilla area