Ключевые слова:
Chemical composition, Terminology, Pressure, Boilers, Thermal testing, Heating equipment, Performance testing, Central heating, Thickness, Copper, Steam boilers, Non-ferrous metals, Steels, Copper alloys, Hot-water boilers, Marking, Burners, Liquid fuel appliances, Technical documents, Cast-iron, Temperature, Hardness, Welded joints, Tensile strength, Engineering drawings