Hi there. This is an awesome looking house. All the materials, textures and overall design is killer. The modern design feels so comfy and livable, not too cold. Awesome. What kind of steel/metal material did you use throughout the house on the stair railing, the frame under the stairs in the office nook, and looks the same as the beams you used in the kitchen too. Is that capped steel? What's the finish on it so you don't see the welding marks but it still looks raw and not painted? I love it. Thanks in advance.