The original main application scope of the flexible shaft machine is large-scale jade carving works that cannot be carried by the desktop computer. It is usually used with handheld devices such as the electric mill to complete the detailed work that cannot be carried out by the electric mill. Since the fixed grinding head of the desktop computer is not as flexible as the handle in handling some types of devices, many people will also choose to apply the flexible shaft machine to some smaller or more special types of devices. Due to the continuous improvement of fine requirements for jade articles, jade carvers in China are constantly looking for and trying more favorable equipment. The dental machine is the medical equipment borrowed from the dentist by the jade carver. Its flexibility is the best of all models at present, so it is mainly used for detail processing, but has little application value in heavy work.

Microcarvings pay special attention to the selection of materials. The stone material should be absolutely pure, and there should be no sand grid or half silk cracks, because half a sand dot may damage a fine picture or more than 10 Chinese characters. Secondly, the micro carving knife is also a special thin knife, which should be sharp and sharp. It is necessary to have a particularly proficient knowledge of calligraphy and traditional Chinese painting. When carving, "meaning carving" and "meaning carving" can be carried out. Hold your breath and concentrate on your thoughts on the spot. The knife should be stable, accurate and ruthless. The micro carved knife is just a pen. The skill is not enough. Because the knife is slightly out of control, it doesn't reach its purpose. The calligraphy effect must be paid attention to when matching the micro engraving inscriptions on the micro sculpture works. The creators should avoid the ugly appearance, the skew of characters, the uneven lines, the inaccuracy of paintings, and the imbalance of matching. We should grasp the artistic effect of the line changes produced by cutting tools and customized stones. Only in this way can calligraphy and knife techniques and strokes be perfectly unified.

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". Hong Kong Colored sculpture 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 Colored sculpture manufactor 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.

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.

GRC components can be widely used in the internal partitions of offices, business and residential buildings, corridors and kitchens. The production process, installation and operation are simple and easy to master; The market prospect is broad and suitable for investors and entrepreneurs to explore and develop. However, the outstanding problems of ordinary magnesium partition board are: poor water resistance, easy moisture absorption and halogen return on the surface, and high water content. According to long-term research, development and production experience, Hainan EPS has fundamentally improved the physical and mechanical properties and water resistance of modified magnesium lightweight composite insulation board through reasonable production process and advanced and unique modification technology. This product has low cost, high strength Long service life, excellent heat and sound insulation effect, light weight per unit volume, etc., and no need to soak in water for curing after modification. It is mainly used for building wall insulation (such as reinforced concrete wall, ceramsite hollow block infilled wall, concrete hollow block wall, clay porous brick wall, etc.), building roof insulation system, steel plate roof insulation, ground insulation, warehouse insulation, pavement foundation, and can be widely used in many fields, such as refrigerator cars, square floors, airports, etc.