GB/T 30870-2014 classifies special dense and shaped refractory products. The standard classifies products into different categories based on their material, density, refractory performance and other key characteristics. Through clear classification, it provides clear guidance for the production, sales and selection of special dense and shaped refractory products. Whether in high-temperature industrial kilns or Miscellaneous scenes with strict refractory requirements, relevant parties can use this standard to accurately select suitable refractory products according to actual working conditions to ensure stable operation and efficient production of facilities.