bids are invited for calibration of sieves of dia 45 cm. , calibration of sieves of dia 30 cm. , calibration of sieves of dia 20 cm. , calibration of electronic balance , calibration of serological water bath. , calibration of laboratory electric oven , calibration of concrete mixer , calibration of ductility testing machine , calibration of los angeles abrasion testing machine , calibration of digi mortar mixer , calibration of unconfined compression tester , calibration of air permeability apparatus ( blaine type ) , calibration of direct shear test apparatus , calibration of ring and ball apparatus , calibration of bitumen extractor with filter paper , calibration of electronic balance cas make , calibration of penetration apparatus , calibration of digi modifiedmarshall apparatus , calibration of muffle furnace , calibration of le- chatelier water bath , calibration of thinfilm oven , calibration of cbr test apparatus , calibration ofweighing scale , calibration of hot air oven , calibration ofweighing weing scale , calibration of mould vibratingmachine , calibration of dial guage , calibration ofelectronic weighing scale , calibration of vernier calipers , calibration of electronic balance , calibration of thicknessgauge , calibration oflength gauge , calibration of seiveshaker , calibration of 100 kn flexural testing machine , calibration of digital compression testing machinecalibration of civil engineering material lab testingboq titleequipment for ge ctl kolkata total quantity : 107