Upper and lower surfaces: galvanized color steel, thickness of 0.4-0.8mm. According to the specific requirements of the composite rock wool panel prices, may also galvanized color steel or galvanized steel. After the first steel roll forming machine composite rock wool factory. By virtue of its material irreplaceable sandwich composite rock wool board offer, in addition to the above-mentioned construction is widely used in the field, but it is also full play to its characteristics of composite rock wool board, to apply it to a wider area, such as within a ship wall, cold storage, highway noise walls and so on. As technology advances and people's work and life needs to replace old ones, in order to better adapt to the needs of people in the new layers of building materials industry create more space