Bitwater (Shenzhen) Technology Co., Ltd. offers lightweight refractory bricks that combine exceptional thermal insulation with structural resilience. Crafted from vermiculite, these bricks feature low density—such as 400 Low Density variants—while maintaining high-temperature resistance up to critical industrial thresholds. Their thermal conductivity is minimized, ensuring efficient heat retention in aluminium electrolytic cells, condensing gas boilers, and industrial furnaces. The lightweight nature (up to 60% lighter than traditional firebricks) eases installation and reduces structural load, without compromising durability against thermal shock or chemical corrosion. These bricks also exhibit consistent dimensional stability, making them ideal for complex furnace linings and fireplace constructions where precision and longevity are essential.