It is the only mounting technology in China that uses high-tech patented technology, special materials and special processes to provide special protection for cultural relics, calligraphy and paintings, photos and other flat items mounted in frames. It can achieve the purpose of moisture-proof, insect-proof, anti-fouling, anti-ultraviolet and anti-harmful gas. It is mainly used for cultural relics, calligraphy and paintings, embroidery, cross-stitch, photos and other flat items that need to be displayed in frames. Its function is to prevent moisture, mildew, insects, pollutants, and damage to the protected items from ultraviolet rays and harmful gases. It can prevent the protected items from getting damp, moldy, stained, insect-bitten, yellowed, faded, cracked or damaged. Economically, it can protect the protected items well without changing the original condition of the protected items, and does not affect the appearance (the protective device is basically invisible from the appearance), and does not affect the re-exchange of artworks. The significance is that it puts forward a new concept for the protection of items displayed in frames, striving to ensure that the protected items are fully protected and no longer suffer any harm. Make the protected items always in new condition. He solved the problem of protecting cultural relics, paintings and calligraphy hung on walls for thousands of years. It is also a very economical method, and traditional methods to achieve the same requirements are very expensive. Protected items have no special requirements for the environment in which they are located, that is, there is no need to modify the venue, no expensive equipment, and no operating costs. The cost itself is not high. So it is a very economical protection method. This painting was soaked in water for more than two months. The frame was soaked but the painting was fine. Not only does it have a national patent, the key thing is that this technology has been tested in the harshest environment. It has passed the test of temperatures from 0 to 50 degrees, humidity from 20% to 100%, high-intensity multi-frequency ultraviolet irradiation at close range, and long periods of time. So it is a trustworthy technology. Mature and reliable technology.