国产精品久久久aⅤ色欲a_日韩免va无码中文字幕_成 人 网 站在线_嫖40岁农村妇女舒服中文字幕_直接在线观看的三级网址_91天天综合网免费永久人口_国产 高潮 白浆 喷水强_国产精品99精品无码精品久久_最新少妇私密按摩对白_免费女人18a级毛片视频

(1) The surface of aluminium foil is extremely clean, sanitary, and no bacteria or microorganisms can grow on it.

(2) Aluminum foil is a non-toxic packaging material, which can be directly contacted with food without any health hazards.

(3) Aluminum foil is a odorless and odorless packaging material, which will not make the packaged food have any odor.

(4) If the foil itself is not volatile, it and the packaged food will never dry or shrink.

(5) Whether at high temperature or low temperature, there is no oil infiltration in aluminum foil.

(6) Aluminum foil is an opaque packaging material, so it is a good packaging material for sunshine products, such as margarine.

(7) Aluminum foil has good plasticity, so it can be used to package products of various shapes. It can also create containers of various shapes at will.

(8) Aluminum foil has high hardness and tension strength, but its tearing strength is small, so it is easy to tear.

(9) Aluminum foil itself can not be heated and sealed, so it must be coated with heat-resistant materials, such as PE, in order to be heat-sealed.

(10) Aluminum foil may have adverse reactions when it comes into contact with other heavy metals or heavy metals.