Dog chews are scientifically proportioned by a variety of materials, extruded by a screw extruder to make various shapes such as twisted flower, star, bone, rhombus, sandwich and other different shapes of chewing pet food. It can not only provide some necessary applications for canine animals such as: protein, fat, vitamins, etc., but also can grind the teeth of pet dogs to satisfy the dog's hobby of chewing. At the same time, it can also strengthen the gums and frontal bones, clean the mouth, remove tartar, To reduce the spread of disease, regular chewing and regular brushing can slow down the formation of dental bacteria and tartar, can reduce the formation of gingivitis and other dirt. The gums are very itchy during the teething stage of the puppy, which not only relieves the pain, but also protects the items at home from being damaged.