Neutral medium, it should be chosen for the copper alloy shell material valve solenoid valve, or valve shells falling debris often rust, especially the movements do not frequent occasions.

中性介质，也宜选用铜合金为阀壳材料的电磁阀，否则，阀壳中常有锈屑脱落，尤其是动作不频繁的场合。

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The result shows the inhibitor is a super rust inhibitor for steel, copper and aluminum.

结果表明产品对钢、铜、铝等金属有良好的防锈作用。

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Suitable for the rust removal made one of such metal as all steel , iron , copper with corrosion , etc.

适用于一切带有锈蚀的钢、铁、铜等金属制件的除锈处理，也适用于工序间涂镀前的除锈处理。

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Over millions of years this created an oxygen-rich atmosphere that rapidly removed electrons from minerals near the surface, creating rust out of iron and forming thousands of new minerals from other metals like nickel, copper and uranium.

ECONOMIST: Minerals