Granite and marble are used as monuments, calligraphy inscriptions and grave supplies. Generally, granite and marble materials with solemn colors such as black, gray and white without obvious large patterns are cut into blanks with a cutting machine, then cut with a chamfering machine and a drilling machine, polished and polished with a grinding machine, and then the details are cut, carved, polished and polished into fine products with a portable electric cutting machine, a pneumatic carving hammer and an electric or pneumatic grinding machine.
Tombstones and their accessories produce the most, including stone tablets, candlesticks, incense burners, sacrificial platforms, paving stones, railings, stone lamps, stone pagodas, urns and stone carvings in tombs.
Extended data
Jieshi is from the Book of Changes.
One of the sixty-four hexagrams in the Book of Changes is called "Yu", and its word is "Jian Hou Si", which is conducive to the March of founding the country.
Xun Zhuan said: "People should be flexible, upward and rational." Yu Gua's 62 words: "Between stones, you can't vibrate all day." "Xun" said: "If you are not loyal, it means righteousness.
The meaning of this poem is: honesty is rock solid, and it is most auspicious not to indulge in pleasure all day long. The reason is because it can be centered.