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一种新的钢质无缝气瓶凹形底

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First Author:YOU Hongxin

Disigner of the Invention:李灿,戴行涛,古海波,宋薛思,liuyan,韩冰,胡军

Application Number:CN201510312792.0

Authorization Date:2015-06-09

Authorization number:CN104930346A

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