2 brass (copper zinc alloy) : it can be increased with the increase in zinc content can be changed into a light yellow color yellow.
黄铜即(铜锌合金)：它可以随着含锌量的增加可以是颜色有黄红色渐变成淡黄色。
2 brass (copper zinc alloy) : it can be increased with the increase in zinc content can be changed into a light yellow color yellow.
黄铜即(铜锌合金)：它可以随着含锌量的增加可以是颜色有黄红色渐变成淡黄色。
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