Buy Offer - Gas

We are Looking Xl Grade Gases E.g:argon,N2,H2,Zero Air(these Will Be Used for Gas Chromatograph Machine)
2) Mixture Gas Containing 1000ppm H2,1000ppmch4,1000ppm C2h4, 1000ppm C2h6,1000ppm C2h2,5000ppm Co,5000ppm Co2,20%o2 and Balance N2.(will Be Used for Calibration of Gc Machine)
3) Location of Supplier,Warehouse,Stores Etc.- Near to Durgapur
please Send the Details.