What is a brass part?

So far, the world's first copper products found mainly in the west, such as Iraq Zagreb Wei - Cheramie area, found copper decorations, circa ten thousand BC to nine thousand BC; western Iran Ali area of Kashi also found a copper decorations, for the years nine thousand BC to seven thousand BC; southern Turkey was Johnny ruins unearthed copper needle, copper cone, dating from about eight thousand bc. These products are natural products of copper copper, copper smelting is obtained by.

From the use of copper, copper ore smelting to obtain pure copper, and bronze alloy smelting, mankind experienced a very long time exploration, is a magical world with copper a bit to create a sparkling time tunnel.This time I will introduce you to this product cnc machining parts importers

At present, the earliest smelting copper in the world was found in Shaanxi, china. [1] in 1973, a semicircle brass plate and a brass tube were found in the cultural site of Shaanxi, Lintong, dating from about 4700 bc. It is worth noting that, recently in Shanghai light source, using X ray fluorescence scanning, found differences in zinc content in different regions of the Jiangzhai brass plate significantly, and lead a scattered state, its characteristics and the reduction of solid preparation of brass are exactly the same, so that our ancestors in between using natural metal and metal casting method. Have a hot forging or solid metal smelting reduction method.


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