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外压单式轴向型膨胀节,外压补偿器_外压单式轴向型补偿器(WDB型)

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外压单式轴向型补偿器(外压单式轴向型膨胀节)的波纹管二端与外筒、内筒相连,波纹管受外压作用,波数较多,因此它能吸收较大的轴向位移。