Ключевые слова:
Polymethyl methacrylate, Plastics, Polymers, Quality control, Sheet materials, Walls, Extruding, Double, Triple, Width, Construction materials, Agricultural materials, Dimensional measurement, Weight measurement, Dimensions, Curvature, Visual inspection (testing), Bend testing, Artificial weathering tests, Chemical-resistance tests, Optical measurement, Transmittance, Corrosion tests, Stress corrosion