Product development focused on "safety" and "environment." The external insulation material "Rock Cell Board" has excellent adhesion to mortar, allowing for both embedded and post-application use, and can be finished directly with mortar or tiles. This means that no special installation hardware or processes are required, enabling low-cost external insulation. Additionally, we can provide cut samples of the Rock Cell Board, so please feel free to contact us. The soundproof rubber mat "Otonashikun" is made from material recycled from automotive rubber parts, making it inexpensive, high-quality, and highly durable. Other products are also manufactured using our original technology.