Folding and heat sealing all-in-one machine

https://ruinet.oss-cn-hangzhou.aliyuncs.com/ruijin/%E7%91%9E%E6%9C%BA%E6%8A%98%E5%8F%A3%E7%83%AD%E5%B0%81%E5%BA%95%E4%B8%80%E4%BD%93%E6%9C%BA.mp4
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