In blown films, input plastic material is melted and inflated into bubble form, then rolled into finished film rolls or used for the next processing steps. The level of films thickness and clarity depends on the end-products' requirements.
Extrusion is a method of plastic formation including 2 phases: extruding melted plastic and pressing it into mould for fixed forms. It is widely used in plastic processing, especially in complex components.
Extrusion creates plastic products by extruding a flow of molten plastic through a die that shares the same shape as the end-products.
Thermoforming creates customized shaped plastic sheets by heating, softening and vacuuming to create end-products with molded shapes.