Ключевые слова:
Thickness, Burst tests, Draughts, Terminology, Drawings, Designations, Wood, Filters, Thermal output, Boilers, Fossil fuels, Steels, Production, Welding, Hot-water boilers, Welded joints, Efficiency, Heating equipment, Performance, Marking, Combustion, Iron, Solid-fuelled devices, Temperature, Sampling equipment, Testing conditions, Emission, Pressure testing, Safety measures