In message <2280F8020F4A@fs*.mt*.um*.ac*.uk*> "A.APPLEYARD" writes: >> I live in England. It is well known that at many big oxygen suppliers >> medical oxygen and industrial oxygen come from the same big tank, and the only >> difference between them is the price. I also live in England. The gas may come from the same big tank but the various grades are handled differently. Medical tanks are drained before refilling. |_| _ _ _ < Internet : harry@ra*.de*.co*.uk* | | (_)_ | | |_| < CI$ : 100141,1632 <Harry Railing> | < Snail : 90 Balham Grove, London SW12 8BE, UK
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