It is an indoor technique, taken from architectural design, and it is one of the European-style stigma expressions that people often say, because indoor stigma is rarely represented by figure carving.

Column type refers to the style of stone beam-column structure members and the complete specification of their combination and overlapping mode. Its basic unit consists of columns and eaves. Columns can be divided into three parts: column base, column body and column head (column cap). Because the size, proportion and shape of each part are different, the treatment and decorative pattern of the column are different, forming different column styles. Classical column is an important modeling method of western classical architecture. The typical classical order in the Greek period included three kinds, and there were five kinds of * * * *: Tuscan, Doric, Onek and Keke.