Котлы центрального отопления, кроме паровых (работающие на любом виде топлива), Котлы стальные водогрейные многотопливные (газ и твердое топливо) КВ-100 Т, Г, Т/Г, Т/Гн, мощность 100 кВт

This is a detailed code with no brand: it fits if your product matches the description in its name. If it doesn't, pick another code in this category. This category's general code can't go on an e-invoice, nor, for marked goods, on a receipt: it takes a detailed code. If there is none, request one on tasnif.soliq.uz, or through mkinfo.uz for building materials.