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this is due to test the principles of various thickness are quite different on the other hand, the majority of flexible packaging material is compressible, so in addition to machinery other types of outer gage thickness of the material sample is often selective, poor versatility.
Characteristics common soft packaging material 3. The flexible packaging materials are mainly composed of a polymer and paper products processing and manufacturing. Divided rubber polymers, fibers, and plastics three categories. The elastic properties of the rubber is high at room temperature.
