Tender For shifting of 2 nos. of helium\ gas quads (each 4.5 tones) and all the other materials stored for helium plant s use (approx. total weight 8 tones) from helium gas manifold yard to is outside adjacent open space towards buffer tank and reinstallation back and rearrangement of materials after the civil construction work. manual rigging using standard rigging equipment s tools and tackles will be done at helium gas cylinder manifold yard, under cryogenic plant & instrumentation section at cryogenic plant gas manifold, 1/af, bidhan nagar, kolkata