Ключевые слова:
Elongation at fracture|Coils|Tensile strength|Test specimens|Density|Plastics|Carbon black|Composition|Sampling methods|Water|Test pressure|Pressure pipes|Polymers|Dimensions|Pipes|Hydraulic tests|Determination of content|Thickness|Marking|Length|Fillers|Thermal testing|Diameter|Antioxidants|Polyethylene