… viscosity, drying power (i.e., the property of absorbing oxygen when exposed to the air and forming elastic films) or … oils, lubricating preparations (compound oils). Linoxyn, a semi ‑ solid rubbery product, which is a highly …
… flippers and respiratory masks of a kind used without oxygen or compressed air bottles, and simple underwater … ). (n) Breathing appliances of a kind used with oxygen or compressed air bottles ( heading 90.20 ). (o) …
… High temperature electrolysis of a mixture of beryllium oxyfluoride (manufactured from the ore) and barium or other … from chromite (chrome iron ore), which is converted to the sesquioxyde which is then reduced to produce chromium metal. …
