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材料在古中國的發展
，左右
了製作鎖具的材質。
古中國在石器時代以石
頭、骨頭、木頭做為工具的材
料；在六千年前，即生產出性
能遠優於自然銅的黃銅；在公
元前八世紀左右，出現了第一
批高爐，是人類最早大規模煉
鐵的開始；在公元前四世紀煉
出了白銅；在五世紀時則發明
了灌鋼。
The materials for manufacturing
locks have been mainly affected
by the historical development of
materials in ancient China.
In Stone Ages, stones, bones,
and woods were the materials for
making tools. Brass appeared in
around 6,000 BC that was superior
in its quality than the blister copper.
The large scale of ironmaking started
with the first appearance of blast
furnace in around 800 BC. Cupro
nickel was produced before 400 BC.
And, the process of steel casting was
invented in around 500 AD.
‧木鎖
Wood lock
129x245x55mm 601g