Dalian Special Handling Office issued a total of 9 copper concentrate automatic import licenses in June 2010, a decrease of 30.8% from the previous period and a decrease of 74.3% year-on-year; the amount was US$6.056 million, a decrease of 80.8% from the previous period and a decrease of 29.2% from the same period of last year. According to the company's report, the price of copper concentrate in the international market fell sharply in June compared to May of this year and June of last year. The copper concentrates imported by the company in May are still difficult to sell, so the number of self-licensing permits in June And the amount fell sharply.
Brass is a special copper alloy. Brass is an object made of an alloy of copper and zinc. It gets its name from its yellow color. Brass with 56% to 68% copper has a melting point of 934 to 967 degrees. Brass has good mechanical properties and wear resistance. Because of its unique advantages, it has become an important part of the parts manufacturing industry. It is generally used for precision copper parts such as automobile parts, medical parts and electrical parts.
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