mechanical shoe type seals 靴式密封
Half seals completely screw type 半密封螺杆式
Rotary shaft lip type seals 旋转轴唇型密封件
pusher-type seals 推进式密封件
ring type seals 圆环式密封装置
bellows type mechanical seals 波纹管式机械密封
SL301 is complete seals type and no need to dedust and exhaust.
主要特点1 . SL301为全密封式，无需排风除尘。
The hope is that you can find a tip type that feels comfortable for long hours and still seals your ear.
这样设计的目的是希望你能找到能封住耳朵，而且戴很长时间耳朵也不会痛的耳塞。
Rubber type of seals must comply with the prescribed grease.
密封件橡胶的类型必须符合油脂的规定。
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