HOME GASES CYLINDER SIZES CONTACT US Global Rare Gases (GRG) trades in crude and purified rare gases and other specialty gases as requested by it's customers. GRG repackage gases into cylinders and volumes to meet customer requirements. GRG, likewise, trades in exotic stable rare gas isotopes and, as a small company, is agile and able to tend to customer requirements quickly and efficiently. To cater to customers globally, Global Rare Gases currently have offices in Ohio, Texas and Hong Kong. Site powered by Weebly. Managed by Bluehost