The sky darkened, clouds overhead turning steel gray.

天暗下来, 云层变成蓝灰色.

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Associated colors: bright red and steel gray.

关联色: 亮红色和铁灰色.

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A hard, steel - gray metal that takes a high polish , it is used g.

铬是质硬 、 可高度抛光的青灰色金属.

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It is suitable for semi - finishing machining of soft steel, gray cast iron Al alloy andAl alloy.

适用于低碳钢 、 灰口铸铁、铝合金、硅铝合金的半精加工.

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