RHZKF series of positive pressure air breather are self-supporting and open.

RHZKF系列正压式空气呼吸器是一种自给开放式空气呼吸器。

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RHZKF series of positive pressure air breather are self-supporting and open.

RHZKF系列正压式空气呼吸器是一种自给开放式空气呼吸器。

youdao