Button carving refers to the carving of the buttons on the upper part of the seal. It belongs to the category of round carving and has a rich three-dimensional sense. However, compared with round carving, it has three significant characteristics. First, the image is small, limited to the size of the seal, which is generally less than 10 cubic centimeters; The second is to show only the upper part of the object, rather than the round sculpture, which needs all-round performance; In addition, the performance content of button carving is mostly animals, especially animals in ancient legends, such as chi, lion, dragon, tiger, exorcism, taotie, etc. Therefore, button carving is also called "animal button". Changchun GRC decorative materials The history of button carving is linked with seals. Only seals can make buttons. According to relevant historical research, the earliest seal started in the Zhou Dynasty, more than 3000 years ago. The original seal is a symbol of power and status, and is a special item for princes, generals and ministers, and Dada dignitaries. The original seal button was also very simple and simple, just drilling a small hole on the top of the seal to wear strong ties for carrying, so the seal button is also called "seal nose". With the continuous development of history, a strict hierarchy has emerged in the materials and buttons of seals according to the different positions and official titles of users. For example, the official seal of the Qin Dynasty used gold, silver, copper and other materials to distinguish the level of officials, but also printed buttons GRC decorative materials customized Make a difference in decoration. In the Han Dynasty, the emperor used tiger buttons with jade seals, the crown prince, the lieutenants, the prime minister, the lieutenant, the sangong, and the left and right generals used gold seal tortoise buttons, and the officials of the two thousand stone Dai Lu used bronze seal elephant buttons Since then, the buttons used by all dynasties, from the monarch down to the officials of various products, were mostly chi, lion, dragon, phoenix, tiger, exorcism, taotie, unicorn, camel, bird, claw, bear, bat and other animals in the zodiac, depending on their positions.

The round sculpture is completely three-dimensional, and the audience can enjoy it from all directions. For example, from the front, we can see the image of holding one's head high, clenching one's teeth, glaring at the enemy and being invincible. On the side, the audience can only see the right hand and left hand clenching their fists, showing Liu Hulan's inner anger through gestures, as well as her desire to smash the old world and wipe out the enemy. The back is relatively simple, and only the hair and clothes lines intertwined by the wind can be seen. In this way, the audience can see all aspects of Hainan sculpture from all angles, thus forming the overall sense of artistic image. The undulation of body is the main means of expression of sculpture, just as words are to literature, and color is to painting. The sculptor can boldly exaggerate, choose and combine the ups and downs of the body according to the needs of the theme content, without being restricted by the normal. The ups and downs of the body are the broad stage on which sculptors can gallop.

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.

It is a three-dimensional plastic art to use certain material materials to produce works of art with solid image. Because the production methods are mainly sculpture and molding, it is called sculpture. According to the production process, sculpture can be divided into two categories: sculpture and sculpture. Subdivision is divided into carving, carving, molding, chiseling, carving, casting and other skills and techniques. According to genre, sculpture can be divided into memorial sculpture, urban garden sculpture, sculpture, tomb sculpture and exhibition sculpture. According to the style, sculptures can also be divided into head portrait, bust portrait, bust portrait, full body portrait, group portrait, etc. According to the technique and form of expression, sculpture can be divided into three categories: round sculpture, relief sculpture and openwork sculpture. Round sculpture, also known as "muddy sculpture", is a three-dimensional sculpture that is not attached to any background and can be viewed from all sides. The round sculpture is characterized by a solid image standing in space. When creating it, one must take into account its sense of volume and weight. When shaping the image, one must also take into account that people watch it from different angles. Relief, also known as "relief", is to carve a convex artistic image on the plane. According to the different degrees of surface relief, relief can be divided into high relief (high and low relief, deep relief) and low relief (low and low relief, shallow relief). The openwork is between the round sculpture and the relief sculpture. On the basis of the relief sculpture, it is made by hollowing out the background, but it does not leave the plane, just like a round sculpture attached to the plane background.