المكون الرئيسي لمعظم المواد البلاستيكية هو النفط الخام أو مشتق الغاز الطبيعي.
There are numerous types of plastics, including clear, cloudy, solid color, flexible, rigid, soft, وهلم جرا.
Plastic products are frequently made from a polymer resin that has been mixed with a variety of additives. Each additive is important because it is used to provide plastic with targeted optimum properties such as toughness, flexibility, elasticity, color, or to make it safer and hygienic to use for a specific application (ref).
