Tender For corrigendum : supply of hydrotesting and other repairing services of the gas cylinders , refilling of acetylene gas in ongc owned cylinders , refilling of zero grade air in ongc owned cylinder , refilling of nitrogen gas in ongc owned cylinders , refilling of hydrogen gas in ongc owned cylinders , refilling of helium gas in ongc owned cylinder
Tender For supply of acetylene c2h2 purity 99 point 67 percentage,helium gas purity 99 point 999 percentage,hydrogen gas purity 99point999 percentage,argongas purity 99 point 999 percent,oxygen gas 99 point 7 percent,nitrogen gas purity 99 point 999 percent,cyll rental charge after rental free day