Ключевые слова:
Plastics, Sheet materials, Unplasticized polyvinyl chloride, Polyvinyl chloride, Dimensions, Thickness, Classification systems, Surface texture, Dimensional tolerances, Rectangular shape, Mechanical properties of materials, Thermal properties of materials, Softening point, Dimensional changes, Optical properties of materials, Luminescence, Thermal testing, Marking, Designations, Impact testing, Bend testing, Test equipment, Test specimens, Specimen preparation