![](/images/pebble/79.jpg)
![](/images/pebble/159.jpg)
![](/images/pebble/241.jpg)
عمليات تعدين النحاس
n n تقنيات استخلاص النحاس المعرفة n. التاريخ The earliest evidence of cold hammering of native copper comes from the excavation at Çaÿonü Tepesi in eastern Anatolia The radiocarbon date is 7250 ± 250 BCE Among the various items considered to be votive or amulets there was one that looked like a fishhook and one like an awlتعدين عمليات ...
![](/image/whatsappp.png)