组合式密封装置是一种新型低摩擦力的密封装置,它既保持了“O”型密封圈的优点,又克服了“O”型密封圈的不足。
But built-up sealing device, a newly developed one has the advantage of the "o" type and gets rid of its disadvantage.
组合式密封装置是一种新型低摩擦力的密封装置,它既保持了“O”型密封圈的优点,又克服了“O”型密封圈的不足。
But built-up sealing device, a newly developed one has the advantage of the "o" type and gets rid of its disadvantage.
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