Regarding the strict standards for aluminum tubes, these kind of types are 100 percent seal against outside atmosphere and leaking inside materials. To reach this, the aluminum tubes are made in one piece from the beginning and are free from any seams and welding and the seal well be broken by the user in the first use.
According to the various kinds of pharmaceuticals with different chemical properties, contiguity test for filling materials and tubes, is mandatory for the pharmaceutical companies. This test is especially crucial for the material which are packed in tubes for the first time.

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