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Autoclave use is widespread, widely used in aerated concrete block, pipe, sand-lime brick, fly ash bricks, porous calcium silicate board, new lightweight wall materials, asbestos insulation, high strength gypsum and other buildings autoclave curing the material in the autoclave complete CaO-SiO2-H2O hydrothermal reaction. Also widely used in rubber products, wood drying and preservative treatment, heavy metal smelting, coal oil seepage invasion firebrick, glass steam curing,