Final answer:
Composite Molding is the process used to reinforce plastic parts with materials like fibers to improve their properties. It's different from coating, extrusion, or lamination, which are other forms of plastic processing.
Step-by-step explanation:
The process of using reinforcements to improve selected properties of plastic parts is called Composite Molding. In this process, materials like fibers or granules are added to a plastic matrix to enhance its strength, durability, or other properties. This is distinct from other plastic processing methods such as coating, which involves applying a layer on the surface; extrusion, where plastic is pushed through a die to create an object with a fixed cross-sectional profile; and lamination, which involves bonding layers together to improve strength or other characteristics.