... of steel mesh, the middle filled with hard rock wool panel or polystyrene board, welded with diagonal crossing wire, to form ... weight, high strength, good stability. The steel mesh is usually with square opening, such as 20mm*20mm, 25mm*25mm, 50mm*50mm, 100mm ... heat preservation effect. Therefore, this kind of compound plate can beused effectively based on each material’s characteristics, has the ...