Extrusion molding is ideal for manufacturing plastic or metal hollow pipes, tubes, rods, straws and geometries where a hollow cavity or an open feature (or features) within a part of continuous length is needed.  In this manufacturing process, a die tool is made unlike other production molding processes where mold halves are made to manufacture repeatable parts.  Once the die is made, material granules are melted before they are then forced under pressure into the die, creating a geometric part upon cooling.  Other geometries ideal for extrusion molding are T-sections, U-sections, I-sections, L-sections and square sections.  Parts can be cut during or after manufacturing to a desired length.