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vacuum connecting tube desiccator 牛角弯头
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The NP-160 product as an example, add a vacuum tube into 25 branches, while remaining 4mm pipe liner connecting hole is too narrow, obviously can not guarantee the quality of the water tank.
以NP - 160产品为例，再增加一支真空管，变为25支，则内胆管孔连接处仅剩4 mm，显然太窄而无法保证水箱质量。
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