Compressed and liquefied gases. Chemicals for refrigeration, Chemical base materials, Chemicals, Pharmaceuticals & Plastics, Gas compressi e liquefatti. Prodotti chimici per refrigerazione (prima parte), Prodotti chimici di base, Prodotti chimici, prodotti farmaceutici, materie plastiche, Tanks and vats, metal, Metal pipework, valves and containers, Construction, Cylinders, bottles and cartridges, metal, for gases