bids are invited for custom bid for services - boq item no 1 semi skilled refrigeration mechanic per shift of 08 hours 2574 shifts , custom bid for services - boq item no 2 supply only hermetically sealed scroll compressor 55 ton capacity 05 each , custom bid for services - boq item no 3 supply only hermetically sealed scroll compressor 75 ton capacity 04 each , custom bid for services - boq item no 4 supply only v belts of size a52 10 each , custom bid for services - boq item no 5 supply only over load relay range from 14 to 23 amps 415 volts 10 each , custom bid for services - boq item no 6 supply only refrigerant gas r22 305 kg