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The conventional freshness package employs vacuum lamination, people generally open the pocket mouth through rubbing by hands. But the flush design increases the difficulty of unwrapping the freshness package, which takes more time. "Ripple" applies the waving ripple clipping on the cut, which can rub out the pocket mouth rapidly and deftly thus saving time and energy in the process of employment.
Hangzhou Vocational and Technical
Haiyan Wu Zhuowen Huang Yangqing Li