The internal and external pressure difference occurs

The other is to pay attention to the accumulation of resources, actively promote or promote the product. . In recent years, the development of most PE stretch film manufacturers is especially true in the market, and the trend of development is still relatively stable.

So why do manufacturers will develop so stable? In fact, in this regard, it is more than one, one is to implement a strict systemist, and strictly control the manufacturers. Anhydrous soaking method, in this way is also commonly used, which is completely charged into the liquid, placed on the filter paper after the seal, if there is an outward leak, then there is a problem of. In the water city pressure method, this kind of vacuum sampling is similar, through vacuum extraction, so that the internal and external pressure difference immersed in water, the inner gas exterior can be initially judged to determine its sealing performance.

By pumping the vacuum, the internal and external pressure difference occurs, and if its product is swollen or the recovery of the shape of the sample after the vacuum, the sealing performance of the sample is determined. With the freedom of their own independent fields, they play their own advantages in their own independent fields, and they compete in each other in the market. Compared with other peers, China Hand Use Stretch Film Manufacturers there are fewer manufacturers to collapse almost in recent years. In addition, there is another important thing to detect quality, this is a level that must pass.

If you have other related questions, please call our PE stretch film manufacturers. So, how can you manage to develop so stable? Next, you will make a simple introduction. manufacturers are very paying attention to quality issues, so that in recent years, the quality testing of stretch film is managed and secret IDE management. Even bankruptcy. Vacuum survey method, this is the method of detection that manufacturers is generally used. Stretch film manufacturers have opened strict testing of stretch film! 

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