Steel hluav taws qhov rooj sealing cuab yeej yog siab heev, yog ua los ntawm steel khoom qhov rooj ncej, qhov rooj ncej thiab lub qhov rooj vaj huam sib luag. Steel qhov rooj hluav taws yog ib yam ntawm lub qhov rooj uas muaj ib tug tej yam hluav taws tsis kam, muaj xws li hluav taws kub kho vajtse accessories.

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