Westerners such as Europe and the United States pay more attention to rosewood than China, because they have never seen the sandalwood material, and think that it can only be used as a small object. It is said that there is a five-inch long rosewood raft model in front of Napoleon's tomb. Visitors are all amazed and think rare. It was not until the late Ming and early Qing dynasties that Western missionaries came to China and saw many red sandalwoods. Only then did they know that the red sandalwood elite was in China. So many parties bought and shipped back to China. The red sandalwood utensils circulating in Europe and the United States are basically shipped from China. Due to transportation difficulties, they generally do not buy the whole piece of utensils, only the cabinet door, box surface and other patterns. After transporting it back, install the wooden frame for the decoration.
In the middle of the Qing Dynasty, due to the shortage of rosewood, the Royals also purchased rosewood from high prices from time to time. In the Qing Dynasty Office, there are records of the purchase of rosewood almost every year. During this period, an unwritten rule was gradually formed, that is, no matter which level of bureaucracy, as long as you see the rosewood, never let go, learn to buy it, turn it over to the royal or local weaving institutions. After the middle of the Qing Dynasty, all the wooden materials hoarded by private merchants in all parts of the country were all bought out. These woods were used to decorate the Yuanmingyuan and the Palace of Taishang Emperor in the palace. They used a large number of them; after the 60th birthday of Tongzhi, Guangxu and Cixi, there was very little left; By the time of Yuan Shikai, the only remaining rosewood would be used up.
All in all, there are many kinds of wood belonging to the genus Pterocarpus, but there is only one type of rosewood recognized in the botanical world, "san sandalwood". Commonly known as "small leaf sandalwood." The real origin is in southern India, mainly in Mysore, and the rest of the types of sandalwood are classified in the grass rosewood.
30m USB Laser Distance Meter, compact and portable design, adopts the advanced laser measure technology, powered by a high accuracy laser distance module, can be used for multiple functions such as distance, area, volume, Pythagoras and continuous measurement. The 30m digital measuring instrument can complete the measurement work well and save your working time. With IP54 waterproof grade and dustproof function, it can maximize the protection of laser distance measure. The compact digital laser ruler can be held perfectly in the hand, and it no longer needs a battery, just a simple and easy-to-use USB charging. laser measure tool is very suitable for home, construction and industrial art, can be used in large areas such as rooms, apartments, buildings, real estate, factories, warehouses, and can also be used with wooden work, handcraft art, home measurement, etc.
Parameter:
Measurement Accuracy: +/-2mm
Measurement Unit: M/in/ft
Measurement Range: 0.03~30m
Measurement Time: 0.1~3s
Laser Grade/Type: Grade â…¡, 630~650nm, <1mw
Type of Battery: USB
Working Temperature: 0℃~40℃
Storage Temperature: -20℃~60℃
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Chengdu ZT Electronics Technology Co., Ltd. , https://www.lasermeasuretool.com