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Foerfarande foer taetning av utrymmet mellan tvao i varandra inskjutbara, vaesentligen koaxiala taetningsytor samt taetningsanordning foer genomfoerande av foerfarandet.
Nya kefalosporiner, foerfarande foer deras framstaellning, dessa innehaollande antibakteriellt aemne, mellanprodukter daerav samt foerfarande foer framstaellning av mellanprodukterna.