Since its chemical character is very active, Mg alloy is prone to oxidation and burning, which makes it impossible to be melted and cast in air.

但由于镁的化学性质活泼，非常容易氧化、燃烧，导致镁合金无法在大气条件下直接进行熔炼和浇注。

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Bronze is harder than copper, more readily melted, and easier to cast.

青铜的熔点较低，较易铸造。

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Bronze is harder than copper, more readily melted, and easier to cast.

青铜的熔点较低，较易铸造。

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