The red and white rosewood material is acidic, the name of the acid branch is also obtained, and both have a very strong pigment, so these two points become the characteristics of identification. A large number of red rosewood was used in the late Qing Dynasty (after the large import of red and white rosewood was indeed the end of the Qing Dynasty, the main areas of the floating area were the major open ports, such as Shanghai, Suzhou, Tianjin, Fujian, and the coastal areas of Guangdong. There is no record of a large number of rosewoods.). Because the mainland port was introduced, the port was opened at the end of the Qing Dynasty, the European powers went to China for trade, and the ship brought a lot of light and light materials and opium from the Central South Peninsula. Therefore, it was chosen to press the cabin with the low price and heavy red rosewood at that time. When returning, the timber was sold due to the weight of the goods, which led to the development of the red rosewood furniture industry in various ports. Therefore, there are a large number of old mahogany furniture in Shanghai, Suzhou, Tianjin, Fujian and Guangdong. City.
Generally, the red rosewood of the new material has a very strong nose and sour taste, while the old red rosewood is obviously not smashed. In addition, by visual inspection, the color of the new red rosewood is purple, but it is lighter and more lustrous. However, the color of the old red rosewood will become significantly darker, even darker, the color is dull, and there is no obvious luster, which is commonly known as the regressive effect.
Red and white rosewood mainly has two differences: First, the color of the material. The color of red rosewood wood is reddish purple, the color is deeper and it is easy to become darker. The longer it is placed, the darker the purple or even the black, that is, there is a deep pigment. It will be purple when rubbed with alcohol. It is generally called Old mahogany, this material is rich in oil (the red rosewood pores are not moisture, oil and gel), is a modern high-grade furniture material. The nature of white rosewood is close to that of red rosewood, but the pigment is lighter and not easy to become deeper. It is generally called real mahogany or mahogany. Second, capillary holes. The capillary of the white rosewood is smaller, and the capillary of the red rosewood is larger.
However, the old word of the red rosewood is called the old redwood is generally added to the difference between the white rosewood, and has nothing to do with the old storage year, and the old redwood currently on the market is mostly new.
Silicone cases for Nintendo 2DS and 3DS consoles.Silicone Soft Gel Protection Case Cover For NDSL NDS Lite,
we are a professional and leader Chinese exporter of Silicone PS4 controller case,Customization options can provide the perfect complete solution that can significantly increase productivity.Providing a variety of complex shapes design. Membrane in the same piece electrically heated heating circuit can be designed and holding circuit,we are looking forward to your cooperation.
Ds Silicone Case,2Ds Silicone Case,3Ds Silicone Case,3Ds Xl Silicone Case
Shenzhen Lingmin Technology Co., Ltd. , https://www.silicalm.com