Close all blind flanges, inspection holes and manholes.
关闭所有盲法兰盖、并检查各个孔和人孔。
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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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模块上移
模块下移
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