Industrial materials are raw substances used in the manufacturing and construction of products. These materials can be categorized into metals, plastics, ceramics, and composites, each serving specific purposes in various industries. For example, steel is a common metal used in building structures, while polyethylene is a widely used plastic in packaging. The selection of industrial materials depends on factors like strength, durability, and cost. Concrete is often chosen for its compressive strength in construction, while fiberglass is valued for its lightweight and resistance to corrosion in automotive applications. Understanding these materials is essential for efficient production and design.