The figure phone calls it an imaginary line, but it isn't really imaginary. It really is only "imaginary" with regard to currently being quite a bit line, mainly because it's not quite a bit line. But the gap that establishes exterior wall fire-resistance ratings and allowable opening percentages relies on https://containerkaufen97642.theisblog.com/36566430/the-5-second-trick-for-ibc-container-gebraucht