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Everyone knows the characteristics of brass, there are many introductions. Because some buyers asked if it was pure copper, it is necessary to spread some knowledge. The so-called pure copper is red copper, which contains 99% copper, which is softer. Brass is a copper alloy with 60-70% copper ,There is strength so that it is suitable for processing into other products, and brass products are all on the market.Note: Polished by hand, with pen holder. The pen tip is designed in accordance with the international general G2 refill, and a variety of refills can be used.