How Can Red Copper Become Hard

What YOU SAY "RED COPPER" IT IS INDUSTRIAL PURE COPPER OR commonly known RED COPPER. Soft and easy to work. The way to increase the hardness of copper is "work hardening". In industry, it is hardened by rolling, extruding and stretching. The popular practice in home conditions is to "knock" hard. The red copper hardens naturally in the process of making copper ware by hand.

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