. 

 

Whether changes occur during the test, as the outer layer of plastic film packaging, the vacuum chamber can be evacuated to the water immersion test 

 

Kind of external pressure generated within the sample gas to escape observation or water penetrate inward, as a means to determine the sealing properties of the sample. Born to wealth of detection 

 

Production MFY-01A-type seal tester (Figure 1) as an example. Referring to GB/T15171-1994 standards in the vacuum chamber into the amount of distilled 

 

Water, bags immersed in water, and the water from the top of the bag shall not be less than 25mm. Vacuum chamber lid closures, set the vacuum, and Paul 

 

Held 30s. In the meantime, if successive bubbles, for the leak, the leak is not regarded as an isolated bubble. Recommendation: waterproof pvc zipper bag 

 

? cfdbz / products-detail.asp cpid = 86 Recommendation: PVC transparent plastic bags of bone cfdbz / products-detail.asp cpid = 32? 

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Title: Supply bags making, gift bags 2014 new low-cost high-quality custom [] _ azure blue sky blue of the sky blue_ 

Content: Supply bags making, gift bags 2014 new high-quality low-cost [custom] [cited 2013-12-25 

 

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????????????? This article comes from Fu Ke Nasi paper bag factory, welcome to visit the factory, buy! Fu Ke Nasi Bags Industry Co., Ltd. is one of "

 

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