Extrusion blow molding is a method of making hollow thermoplastic parts. The well-known blow molded products include bottles, barrels, cans, boxes, and all containers for packaging food, beverages, cosmetics, medicines, and daily necessities. Large blow molded containers are generally used for packaging chemical products, lubricants, and bulk materials. Other blow molded products include balls, corrugated pipes, and toys. Regarding the car manufacturing industry, fuel tanks, car shock absorbers, seat backrests, center brackets, armrests, and headrest covers are all blow molded. Regarding mechanical and furniture products, blow molded parts include shells, door frames, frames, pottery jars, or boxes with an open surface