单弹簧式机械密封-single-spring mechanical seal 多弹簧式机械密封-multiple-spring mechanical seal 非平衡式机械密封-unbalanced mechanical seal ..
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Mechanical seal type XM31A has a single seal face and multi-spring unbalanced structure, and is driven by screw transmission.
XM31A型机械密封为单端面、多弹簧非平衡型结构。采用传动螺钉传动。
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