Phát lộ lò gia công và chế tác đồ sắt thời cổ đại ở Trung Quốc
Tàn tích của lò gia công đồ sắt được tìm thấy tại khu di tích Guantian ở huyện Sangzhi (Trung Quốc), các nhà khảo cổ đã tiến hành khai quật di chỉ có diện tích khoảng 75.000m2 này từ năm 2020 đến nay.
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