Bhdl - n.v.a. 방독면 1번 - 숨쉬기 훈련 - 완전히 숨을 들이쉬고 내쉴 수 없는 2리터 브레스백

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BHDL - N.V.A. GASMASK NO.1 - BREATHPLAY TRAINING - 2 LITER BREATHBAG UNABLE TO FULLY BREATH IN AND EXHALE

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