bids are invited for custom bid for services - purging of cylinders , custom bid for services - uncapping of cylinder , custom bid for services - cyl oring pin cut check , custom bid for services - pre inspection dp hr seggrega , custom bid for services - punching of tare weight , custom bid for services - carousel attendent , custom bid for services - weight correction of cylinder , custom bid for services - replacement of oring , custom bid for services - cap tying of cylinder , custom bid for services - capping of cylinder , custom bid for services - test bath , custom bid for services - placing of seal on cylinder , custom bid for services - filled cylinder handling , custom bid for services - asst filling cyl 47point5 and 5 and 2 kg , custom bid for services - ot hrs production unskilled , custom bid for services - ot hrs production unskilledot hrs production semiskilled , custom bid for services - job reliever , custom bid for services - empty cylinder handling , custom bid for services - online valve changing per piec , custom bid for services - evacuation