Explain the importance of polymer compounds reinforced with glass fibers or mineral fillers, which, while maintaining strength, reduce the weight of parts and directly contribute to reducing energy consumption.Explain the importance of polymer compounds reinforced with glass fibers or mineral fillers, which, while maintaining strength, reduce the weight of parts and directly contribute to reducing energy consumption.Explain the importance of polymer compounds reinforced with glass fibers or mineral fillers, which, while maintaining strength, reduce the weight of parts and directly contribute to reducing energy consumption.