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In aluminum extrusion production, the maximum output is mainly determined by the extrusion speed, and the quality of aluminum profiles depends on the temperature at which the aluminum profiles are released. With the acceleration of the extrusion speed, the temperature of the aluminum profile will significantly increase. When the temperature exceeds a certain value, there will be a variety of problems in the structure and surface quality of the aluminum.

Felt is the oldest man-made material that is known, it existed before woven cloth and knit. The product can then be stretched to make varieties of items including belt which are then referred to as felt belt. Felt are used for various purposes in different industries since they are produced based on pressing, blending, and then drying. In this article, we discuss the advantages of using felt to manufacture felt belt.

PBO and Kevlar both have different ingredients, characteristics, advantages, and uses, making them excellent fibers widely used in many industries. This paper provides a detailed comparison of the introduction, properties, and application between these two materials.