What are the traditional techniques for hand-machining stone carving products?

The traditional manual processing technology of hand-processed stone carving products is "kneading". This is not only a sample making, but also a creative design process. Some sculptures are sketched before blank, while others are made of clay or gypsum models. Re-carving: also known as "line carving", that is, works of art with the carving method of "water grinding and heavy flowers". This carving method absorbs the traditional brushwork and meaning of Chinese painting, the overlapping of line modeling, scattered perspective and so on. After the stone is polished by plane processing, the pattern characters are described, and then lines are carved according to the graphics, and the three-dimensional sense is reflected by shadows. This kind of products are mostly used for the surface decoration of building exterior walls, which is artistic. China has developed many new multifunctional stone carving processing machines, which have played a very important role in promoting the development of China's stone carving industry, changing traditional manual work, improving product quality and grade, and expanding exports. However, there is no unified national standard for stone carving products, so it is suggested to formulate a complete and unified quality standard system to make new contributions to standardizing and promoting the development of carving industry.

?