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business: industrial product model, sand table model of large power stations, multimedia body display production, industrial / corporate image display sandbox, sandbox construction achievements propaganda exhibitions, the new factory / Development Planning sandbox, topography, sandbox, urban planning and small towns planning and construction sand table, real estate properties and apartment sand table model of the ancient architectural masterpiece, the world-famous architectural models and landscape models. Another operating substation electrical simulation board, mine run analog board and boiler heating, water supply system simulation board design and production.