Extrusion techniques are manufacturing processes used to create objects with a fixed cross-sectional profile. In this method, material, often in the form of pellets or granules, is heated and forced through a die, shaping it into the desired form. Common materials used in extrusion include plastic, metal, and food products. This technique is widely used in various industries, including construction, automotive, and packaging. The resulting products can range from pipes and tubes to noodles and snacks. Extrusion allows for continuous production and can be highly efficient, making it a popular choice for mass manufacturing.