Exterior wall insulation decorative board is also called exterior wall insulation board, exterior wall board, metal curtain wall board, etc. It is a kind of exterior wall thermal insulation decorative wallboard made of high-quality galvanized sheet with color coating printing and thermal insulation materials. It is also a kind of new exterior wall external insulation board, which changes the disadvantages of single decoration color and no insulation layer in the past. The external thermal insulation system of thermal insulation decorative plate is a kind of external thermal insulation technology that has developed very rapidly in recent years. It has the advantages of factory prefabrication site quality control, cycle saving, and very beautiful curtain wall effect. Now, more and more public buildings and high-grade residential buildings are using the external thermal insulation technology of thermal insulation decorative panels. Various regions are also constantly issuing standards and guidance documents for the thermal insulation decorative board system, which is good news for the development of thermal insulation decorative board products.
From the perspective of development, sculpture can be divided into traditional sculpture and modern sculpture. Traditional sculpture is a visual, tactile and static three-dimensional art form molded with traditional materials; Modern sculpture uses new materials to make anti traditional four-dimensional, five-dimensional, acousto-optic, soft and dynamic sculptures. According to traditional materials, cost performance Stone sculpture According to environment and function, it can be divided into urban sculpture, garden sculpture, indoor sculpture, outdoor sculpture, desk sculpture, shelf sculpture, etc. There are many kinds of sculpture materials, such as clay, stone, wood, metal, gypsum, resin, ivory, etc. Then several categories were developed: wood carvings: wood carvings have a long history. Most of the early themes were centered on religion. In addition to religious icons, they were also used for the decoration of altars and religious places. In countries where wood building flourishes, wood carving develops with architecture. Modern wood carvings have quite diversified styles and features, and artists like to use abstract forms to express them. In addition, wood carving is also an important contributor to the invention of printing. Please see woodcut prints for details; Stone carving: The regions where stone carving is developed have a lot to do with where the stones suitable for carving are produced. The regions where stone carving is developed have a long history of stone carving. Xining Stone sculpture In the past, stone carvings were often used as decorations of gardens, signs of doorways, or architectural decorations of mausoleums. Because the stone is thick (not easy to be stolen), and the details of carvings are not easy to be damaged by wind and rain, stone carvings are mostly in outdoor environments. The common stone carving material is marble. There are clay sculptures, ice sculptures, sand sculptures, metal sculptures and pottery.
The types of stone inscription monuments include monuments, memorial monuments, merit monuments, temple monuments, Dianzi monuments, mausoleum monuments, etc. Except for a few wordless steles, they are generally literal steles. Usually, characters are carved on the body of the stele, and some are accompanied by carved patterns. The pedestal and cover of the stele are mostly carved with decorations, birds, animals, flowers, and mascots. The cover of the stele of the imperial family is also carved with dragons and phoenixes. Marble is the most commonly used stone for making the stele, and sandstone and granite are also commonly used. Some of the steles are huge, and some of them become a group of steles. Stone books are written with stone instead of paper, and carved instead of pen, which is very ingenious. There are many famous works of stone tablet processing and stone calligraphy carving. For example, "Xi'an Forest of Steles" includes more than 3000 historical steles from Han Dynasty to Qing Dynasty. It is the largest collection of stone books in China. Together with the "Forest of Steles in Hanlin" under construction in Kaifeng, it can be said that it is a sea of steles, and it is a collection of calligraphies of regular script, line, grass, seal script, clerical script and Wei style by famous calligraphers of all ages. In addition to large-scale carvings such as stele books and cliff carvings, there are also some stone carvings, such as mourning volumes in imperial tombs and modern fine carved small stone books, such as more than 100 mourning volumes of white marble excavated in the tomb of the prince of the Tang Dynasty, and six stone books of "Thirty six Strategies" carved in tile slate in modern Chengdu, a total of 26 pages and 1278 words, bound into a volume with eyeliner, each page is 2.2.6mm, which can be read.
Most of the jades mentioned in daily life refer to nephrite, and there are many kinds of nephrite products. Generally, they refer to white sheepskin jade, white jade, topaz, purple jade, black jade, jasper, sapphire, ruby and northeast Xiuyu produced in Xinjiang. In the jade carving, the white jade with sheepskin is fine in texture and strong in luster, as white as sheepskin, which can be called "the king of nephrite" and "the crown of white jade". In addition, Nanyang jade, Lantian jade, Hotan jade, agate, crystal, coral, turquoise, lapis lazuli, etc., all belong to the category of nephrite. Later, due to the opening of the Silk Road, the jade produced in Hotan, Xinjiang, was unanimously recognized and began to play a leading role in the processing of royal, official and folk jade. Nephrite gradually evolved into a synonym for hotan jade.