Ключевые слова:
Pipelines|Tensile strength|Bend testing|Marking|Pipework systems|Chemical composition|Tensile testing|Classification systems|Grades (quality)|Alloy steels|Position|Flammable materials|Seamless pipes|Non-destructive testing|Defects|Flattening tests|Visual inspection (testing)|Pipes|Condition of goods|Welded joints|Pressure testing|Welded fittings|Designations|Fluids|Dimensions|Steels|Impact testing