bids are invited for repair and calibration of bouncy balance hot plate 1 12 calibration of ring and ball apparatus , repair and calibration including change of cells of electronic balance capacity 50kg x 5g , repair and calibration of auto digital tds meter , calibration of thin flim oven , calibration of los angeles abrasion testing machine , repair servicing and calibration of bouncy balance , repair and calibration of cleveland open cup , repair and servicing of hot plate 12x10 , calibration of weighing scale satwik make capacity 30kg , calibration of flakiness gauge t 95 old and t 144 new , calibration of penetration apparatus of make aimill ltd , calibration of penetration apparatus of make labquip , buoyancy balance(nclil) total quantity : 13