Generally use the soft rubber type sealing ring seal, hard seal ring-type metal seal used.

软密封型一般采用橡胶环密封，硬密封型通常采用金属环密封。

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Generally use the soft rubber type sealing ring seal, hard seal ring-type metal seal used.

软密封型一般采用橡胶环密封，硬密封型通常采用金属环密封。

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