The welded metal bellows mechanical seal is largely used for the axial seal of hot oil pump in refinery.

焊接金属波纹管机械密封主要用于炼油厂热油泵的轴封。

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The welded metal bellows mechanical seal is largely used for the axial seal of hot oil pump in refinery.

焊接金属波纹管机械密封主要用于炼油厂热油泵的轴封。

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