The KB-131 <Xu Lang> Extremely Narrow Armored Door combines a dark-gray frame and door leaf with a vertical nano-brass accent. Fine ribbing across the leaf reinforces the tall proportions, while the centred brass-toned strip creates a clean visual break.
The charcoal and warm-metal palette can complement contemporary façades using dark window frames, gray stone, concrete or warm lighting. “Extremely narrow” is the supplied series designation; final dimensions, opening direction, hardware and any required project rating should be confirmed before production.