The document is a catalog from Beijing Sino Steel Engineering & Equipment Co. describing honeycomb and ceramic ball products. It provides an introduction to honeycomb shapes and applications in regenerative burners. Various styles of honeycomb are described, including cordierite, mullite, corundum, and chromium oxide varieties. Physical properties and maximum operating temperatures of each style are given. Geometric specifications for common ceramic honeycomb sizes are listed, with hole configurations, counts, diameters, and thicknesses.