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In this type paper cup machine,we add a ultrasonic system to sealing the paper cup body,the ultrasonic system resolve the problem that double sides PE coated paper can not be sealing by heater,the reason is that when a heater is adopted on the outside suface the PE film will be burnt and become yellow or blackish and make the cups shape in ugly. Use LBZ-L Ultrasonic Paper Cup Machine,you can produce both double sides PE coated paper cups and single side PE coated paper cups only exchanging the raw material. 
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Contact Info:
Ruian City Luzhou Paper Cup Machinery Co.,LTD
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paper cup machine
