A scale of rust covered the steel plate.

一层铁锈覆盖了钢板。

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Remove scale, in the process of assembly parts surface oil, in case of rust.

去掉氧化皮，装配过程中零件表面涂上油，以防锈蚀。

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Remove rust, scale, paint, solder and more.

除锈，氧化皮，油漆，焊料等。

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Remove rust, scale, paint, solder and more.

除锈，氧化皮，油漆，焊料等。

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