The document discusses different types of materials used in manufacturing including textiles, metals, woods, and plastics. Textiles come from natural fibers like silk, wool, linen, and cotton or manufactured fibers like polyester, nylon, and rayon. Metals are divided into ferrous metals containing iron like steel and non-ferrous metals without iron like copper. Woods are classified as softwoods from conifers, hardwoods from deciduous trees, or manufactured boards. Plastics are polymers and include thermoplastics that can be remelted like polyethylene and thermosets that set permanently like polyester resin.
