It is the special equipment of keeping food fresh which removes the air out of the cups or boxes and fills nitrogen or other gases after the vacuuming.

• 适用范围：微波菜肴、卤菜、鱼肉制品；畜禽、水产品；生鲜、瓜果、蔬菜、菌菇类；糕点、面食制品；腌腊制品、茶叶、人参、上等草药等需保鲜的各类农副产品。