Copper casting is an important part of Chinese traditional culture and art. Copper casting has a long history and mature technology. The process of casting copper is more complicated than that of forging copper, and the artistic creation has a good recovery. Therefore, it is suitable for becoming the material of fine works and is very popular with artists, especially figure sculpture. But it is easy to oxidize, so pay more attention to maintenance. Each cast copper artwork is made through 11 complex and rigorous processes, which include traces of traditional handicrafts, lines and modern technology of precision casting. Cast copper is put into the sintering furnace and sintered at 1000 ℃ - 1150 ℃ according to different metal materials. The copper liquid is immediately cast into the ceramic shell. After cooling, the outer ceramic shell is broken, and the copper product rough embryo is peeled out.

Shallow relief has a low rise, a large compression of shape, a strong sense of plane, and is closer to the form of painting to a greater extent. It does not rely mainly on physical space to create space effects, but uses more painting techniques or perspective, illusion and other processing methods to create more abstract compression space, which is conducive to strengthening the dependency of relief suitable for the carrier. The ancient Assyrians of Mesopotamia were probably the artists who were best at performing art by this means. In a series of "Assyrian Hunting Pictures", they used the technique of bas relief very well to express the lively artistic image with a sense of rhythm and rhythm, and to show the inner feelings of the characters and animals with complex dynamics. The selection of the compression degree of relief space usually takes into account the function, theme, environmental location, light and other factors of the performance object, of which the environment and light factors play a decisive role. Excellent sculptors can always handle these relationships well, so that the works can achieve good visual effects.

1. Traditional green sculpture shaping: directly pruning the plants with garden art. There are simple geometric shaping (such as sphere, cube, pyramid, cylinder), complex geometric shaping (layered shaping, spiral shaping, etc.), animal shaping and various peculiar shaping (automobile shaping, aircraft shaping, abstract and free shaping, etc.). Common plants include pine and cypress, privet, boxwood, national locust, elm, etc. 2. Grafting: taking a certain plant as the rootstock, grafting plants with different impressions on it, and then making artistic processing of its shapes, such as polychrome chrysanthemum bonsai, polychrome rose bonsai, polychrome peach, polychrome plum, polychrome crabapple, etc. Such as cliff chrysanthemum, tower chrysanthemum, animal shaped chrysanthemum, etc. 2.1 Single plant green sculpture refers to the sculpture formed entirely by one plant or one plant with multiple colors or by grafting multi-color plants. The sculpture has a long viewing period and simple operation. For example, tree sculptures can be kept for a long time only by special pruning, without considering flower changing and water spraying, and the maintenance management is simple. 2.2 Double plant green sculpture refers to the sculpture shaped by two different kinds of plants. The sculpture has a long viewing period and a strong three-dimensional sense, and usually uses the complementary and mutually reinforcing advantages of two plants for modeling. Such as evergreen and deciduous plants, broad-leaved and coniferous plants, lianas and herbs, as well as different colors, species, branches and leaves, such as leaf color, flowers and fruits, branches and stems. 2.3 Mixed plant green sculpture refers to sculpture with three or more kinds of plants. The sculpture has a short viewing period and complicated operation, but it is highly ornamental and lifelike. The common ones are large three-dimensional sculptures, some animal shaped sculptures elaborately composed of flowers, leaves and fruits of different plants according to design requirements, such as peacock, red crowned crane, panda, etc; Or symbolic sculptures with certain cultural connotation and city image, such as idiom allusion sculptures (learning to walk in Handan, dancing at the smell of chickens), Olympic seal, football World Cup, etc.

The openwork carving technique is an original carving technique in Putian. There are still many "gold inlaid openwork lanterns" and "embossed flower windows" in the Palace Museum in Beijing, which all support the traditional craft charm of Putian wood carving. From the end of the Ming Dynasty to the beginning of the Qing Dynasty to the Republic of China, Putian wood carvings were mostly made of longan wood, which was rich in local production. Xining GRC component Carved into various military generals, women or gods, antiques, supplemented by high quality GRC component The painting with old lacquer makes the work more deep in color. Zhu Bangshou, Huang Dangui, Chen Xiange and other famous painters, together with Liu Ronglin, formed a round sculpture character style characterized by Pu style military generals. So far, many figures and architectural decoration wood carvings have been left for future generations in Guandi Temple, Yuanxia Village, Jiangkou Town, Jiufeng Village, Wutang Town and other old folk houses, These masterpieces, which combine round, transparent and relief carvings, are treasures of Putian wood carving art.