1 مهندسی صنایع:: پرده های ضدحریق چندلایه
They are usually powered by an electric motor(s). A horizontal tension bar is fitted to the leading edge(s) to provide stiffness and to engage with the receiving channel in the opposite side or via a male and female arrangement for conjoining fabric curtains.
واژگان شبکه مترجمین ایران