摘要 |
A vertical mullion includes an outer structural member and a vertical mullion body coupled together by bolts to embrace a heat insulating member. The vertical mullion body, which has a substantially rectangular cross section, is provided with a heat transfer medium flow passage extending depthwise through the interior thereof. The vertical mullion body has a lower end portion extending below from a connecting portion to a fastener which is mounted to a floor slab, and the lower end portion is connected to a feed pipe and/or a drain pipe. |