箔薄膜有很多品种，选择哪一种薄膜，可以根据需要来定。
Aluminum foil membrane has many varieties, choose which kind of film, can according to need to order.
如果是包装食品，首先选择的是包装袋的安全性，有异味，有污染可能的包装袋一定不要选。另外，包装袋对物品的作用主要是保护，即使没污染，但是机械性能低的包装袋也不能选用。有的包装袋就是这样，用一个非常干净、无异味的包装袋盛着馒头往前走，走着走着，那馒头就掉出来了，沾上了好多土，没法吃了。这种塑料包装袋不管多么干净也是没法用的。
If they are packaged foods, first choose the safety of the packaging, is faulty, have the packing bag of pollution may don't choose. In addition, the packaging of goods major role is to protect, even no pollution, but the packing bag of low mechanical performance also can't choose. Some packaging is like this, with a very clean, no smell the packing bag of the steamed bread are walking, walking, the steamed bread will fall out, with a lot of soil, can't eat. The plastic bag is no way to use no matter how clean it.
比如有些济南铝箔袋大部分用来包装肉食，需要对氧气有阻隔性能，但是有些铝箔袋却没有这样的功能，一打开铝箔袋，袋子里的东西都坏掉了，不管是驴肉还是马肉，不管是山珍还是海味都得扔掉，因为坏了，就不能吃，一个不好铝箔袋，毁掉了一大堆美食。
Most used to wrap meat such as some aluminum foil bags, need for oxygen barrier performance, but some aluminum foil bags have no such function, open the aluminum foil bag, the bag of things broken, whether donkey or horse meat, duck, or seafood have to throw away, because of the bad, will not be able to eat, a bad aluminum foil bag, destroyed a lot of food.
真空包装袋的好坏首先在于它的功能是否能达到目标，其次是它对食品有没有污染。
The stand or fall of vacuum packing bag first lies in its function whether can reach the goal, the second is that it did on food contamination.
