bids are invited for surface plate , piezometer tube , u tube differential manometer , bernoullis apparatus , venturimeter apparatus with differential manometer , pipe friction apparatus , air compressor with 2 hp motor , lancashire boiler model , babcox and wilcox boiler model , ring spanner set , quenching tank , moulding boxes , tool kit , aggregate impact value testing apparatus with automatic blow counter , bar bending apparatus , cutter apparatus , ring and ball apparatus with heating mantle , cbr apparatus with loading machine , flash point and fire point apparatus cleaveland type , los angles abrasion testing machine apparatus , penetration value apparatus with timer , transit theodolite vernier type , prismatic compass , lavelling staves all aluminium , pantagraph , optical square , ranging rods total quantity : 87