WESTFALEN AG ni mtoa ya bidhaa na huduma kama vile mafuta ya petroli nishati na viungio,cartridges, dioksidi kaboni,ethane,florini gesi,hexane,hydrofluorocarbons, chlorofluorocarbon (cfc) badala,bromidi hidrojeni,floridi hidrojeni,hidrojeni iodidi,hidrojeni fosfidi / fosfini,isobutane,kriptoni,ozoni,propylene,sulphur kaboni, usitumie au oevu,machozi gesi,xenon,usitumie na gesi oevu, safi,gesi, high usafi,kifyonzi gesi mchanganyiko kwa ajili ya ufungaji tarehe anga chakula,calibration gesi,laser gesi,butane,butadiene,hewa, usitumie,hewa, kimiminika,butylene,dioksidi kaboni, imara / kavu barafu,monoksidi kaboni,propane,cfc (cfc),chlorofluoroethanes,chlorofluoromethanes,cyclopropane,argon,heli,neon,matibabu gesi,hidrojeni,naitrojeni,oksijeni,dioksidi kaboni,oksidi za nitrojeni,oksijeni kwa matumizi ya tiba,refrigerating gesi,semiconductor gesi,erosoli propellants, florini hidrokaboni,methane,ethilini,klorini,amonia,peroksidi hidrojeni,hidrojeni,asetilini,hidrojeni sulphide.