Ключевые слова:
Pipes, Steels, Pipelines, Pipework systems, Flammable materials, Fluids, Gas supply, Seamless pipes, Seamed pipes, Welding, Welded joints, Preferred sizes, Chemical composition, Mechanical properties of materials, Heat treatment, Inspection, Testing conditions, Sampling methods, Mechanical testing, Dimensions, Mass, Dimensional tolerances, Defects, Repair, Marking, Protective coatings, Acceptance (approval), Non-destructive testing, Ultrasonic testing