想必他是處理這方面的高手
Lead glass - Wikipedia, the free encyclopedia 雙(子)塔奇謀嗎? Lead glass is a variety of glass in which lead replaces the calcium content of a typical potash glass.[1] Lead glass contains typically 18–40 weight% lead(II) oxide (PbO), while modern lead crystal, historically also known as flint glass due to the origin...
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