Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 INORGANIC CHEMICALS; ORGANIC OR INORGANIC COMPOUNDS OF PRECIOUS METAL, OFRARE-EARTH METALS, OF RADIOACTIVE ELEMENTS OR OF ISOTOPES 28 53 REMOVED); COMPRESSED AIR; AMALGAMS, OTHER THAN AMALGAMS OF PRECIOUS Commodity Code Description 28 53 00 OTHER INORGNIC COMPOUNDS;...LIQUID AIR;...COMPRESSED AIR; AMALGAMS....ETC