This alloy is a bit tricky as it sometimes may harden in the first twenty four hours after casting, becoming almost brittle, and produce cracks in the grid frames, etc.
英
美
释义
这种合金制造有些棘手,因为有时铸造后24小时内硬化,几乎变得很脆,在板栅框等处产生裂痕。
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