| 摘要 |
The invention comprises a substance and a method of manufacture of said substance whereby a cow's raw hide is cut into suitable shapes which are then dried and hardened before being heated and subsequently vacuum expanded to produce a soft dog chew. Although the resultant substance is made of the same materials and has the same taste as a conventional hard dog chew, the chew itself is in fact soft which means that it can be chewed to produce all the benefits that are normally required of a dog chew without at the same time damaging the weaker teeth of a puppy or of an old dog, for example. |
