... 3.2 波纹管bellows 33 单式轴向型膨胀节single axial expansion joint 3·4 单式铰链型膨胀节single hinged expansion joint ...
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... ※ 单式铰链型膨胀节 single hinged es ※ 单式轴向型膨胀节 single axial exp ※ 波纹管 bellows ...
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外压单式轴向型膨胀节 externally pressurized single axial expansion joint ; externally ; exter
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