The stone work includes column foundation stone, step stone, step stone, earth lining stone, etc. The production and installation of stone work, the variety, specification and size of stone must meet the design requirements or the conventional practice of ancient construction. The texture direction of the stone must meet the stress requirements of the object, and the stone with cracks, blast marks and hidden residues shall not be used. The appearance of the stone shall be free of obvious defects, and the color shall be similar. The surface of the stone shall be clean and complete, and there shall be no chopping axe and axe on the surface of the stone with missing edges and corners, which shall be straight, uniform, consistent in depth, without chiseling points, chiseling shadows, and the last time of chiseling, and the width of scraping edge shall be the same.<br>
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