The reusable inflatable closure plug can be designed and prepared in advance according to caliber, thereby avoiding customization defects of flanges or blind spots.
充气式密封塞可预先根据管径设计制作好，能重复使用，克服了采用法兰或盲头需要定制加工的缺陷。
The reusable inflatable closure plug can be designed and prepared in advance according to caliber, thereby avoiding customization defects of flanges or blind spots.
充气式密封塞可预先根据管径设计制作好，能重复使用，克服了采用法兰或盲头需要定制加工的缺陷。
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