The origin of brass jewelry?

The origin of brass jewelry? Brass in brass jewelry is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. Brass is often used to make valves, water pipes, connecting pipes for internal and external air conditioners, and radiators. So far, the copper products found in the world are mainly in West Asia, such as the Jawi Chemi area of u200bu200bIraq. Copper decorations were found, dating from about 10,000 BC to 9,000 BC; these copper products are all natural red copper Making products is not extracting copper by smelting ores. From the use of pure copper to the smelting of copper ore to obtain pure copper, to the smelting of bronze alloys, human beings have experienced a long period of exploration, just like building a sparkling space-time tunnel with copper bit by bit in a magical world. At present, the world's early smelted copper was discovered in Shaanxi, China. In 1973, a semicircular brass sheet and a brass tube were discovered at the Jiangzhai Cultural Site in Lintong, Shaanxi, dating to around 4700 BC. It is worth pointing out that near Shanghai Light Source, using X-ray fluorescence surface scanning analysis, it is found that the zinc content in different areas of the Jiangzhai brass sheet is significantly different, and the lead element is scattered in dots, and its characteristics are exactly the same as that of the brass jewelry prepared by the solid-state reduction method. This proves that between the use of natural metals and the invention of metal casting, the ancestors used hot forging or solid reduction to smelt metals. The term'brass' has long been seen in the 'Shen Yi Jing·Zhonghuang Jing' written by Dongfang Shuo in the Western Han Dynasty:'There is a palace in the northwest, and the brass wall is the palace of the sun and earth. 'The information comes from the Internet. If there is any similarity, please contact to modify it, focusing on the wholesale of custom brass jewelry.