bids are invited for gas1 - nitrogen uhp cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas2 - hydrogen uhp cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas3 - zero air cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas4 - helium uhp cylinder purity 99 point 999 percent 50 ltrs cs cyl with brass valve pressure 200 kg per cm2 , gas5 - oxygen commercial cylinder purity 99 point 5 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas6 - co2 commercial cylinder purity 99 point 5 percent 47 ltrs cs cyl with brass valve pressure 65 kg per cm2 , gas7 - co commercial cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas8 - methane cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas9 - co2 pure cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 65 kg per cm2 , gas10 - oxygen pure cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas11 - argon grade 1 cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas12 - six percent nh3 plus helium cylinder 10 ltrs cs cyl with brass valve pressure 90 to 100 kg per cm2 pt plus minus 10 percent ca plus minus 2 percent stability 12 months , gas13 - five percent h2 plus argon cylinder 10 ltrs cs cyl with brass valve pressure 130 kg per cm2 pt plus minus 10 percent ca plus minus 2 percent stability 12 months , gas14 - p10 gas cylinder 90 percent argon plus 10 percent ch4 47 ltrs cs cyl with brass valve pressure 130 kg per cm2 pt plus minus 10 percent ca plus minus 2 percent stability 12 months , gas15 - compressed air cylinder purity 99 point 999 percent 47 ltrs cs cyl with brass valve pressure 140 kg per cm2 , gas16 - co pure cylinder purity 99 point 999 percent 47 ltrs cs cyl w