Condensing Boiler Piping Design

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  • Опубликовано: 15 май 2017

Комментарии • 3

  • @nazrullakhan3045
    @nazrullakhan3045 4 года назад

    Thanks for the video. Very informative. But voice level is too low. Can you please share with a better voice quality.

  • @user-nx8xz3pc2r
    @user-nx8xz3pc2r 3 года назад

    big like

  • @tahoefor
    @tahoefor Год назад

    voice is too bad