Mirror heart: mirror refers to a mounting method of Chinese painting sketches or some decorative paintings. Pre-sale fine mounted on thick cardboard (this kind of cardboard is elegant or gorgeous in color, decorated with broken gold foil, and the effect is very good), you can buy it and put it directly in the frame and hang it indoors for appreciation. Because of the various forms of lenses, they are suitable for modern home decoration, and some painters also paint them specially. These frameless paintings are called mirror centers.
Film: photosensitive emulsion is evenly coated on a transparent plastic film base for exposure, also known as film, film and negative film.
The vertical shaft is a wooden shaft mounted on the painting and calligraphy works, so that it can be hung flat and easy to appreciate; Roll up for easy storage. Calligraphy banners (vertical) are installed in the traditional form.