دسته‌بندی نشده

Building materials are substances used in construction, including natural (wood, stone) and synthetic (concrete, steel). They provide structural support, insulation, and aesthetic appeal. Common materials include […]

Steel products are materials made primarily from iron with varying amounts of carbon and other elements. They are known for their strength, durability, and versatility, making […]

Mineral raw materials are naturally occurring substances that are mined and used for various purposes. These materials are essential for the production of a wide range […]