Steel surface should be no visible oil, dirt, scale, rust and paint coating and other debris should as far as possible eliminate, any attachments should be strong.

钢材表面应无可见油脂、污垢、氧化皮、铁锈和油漆涂层及其它杂物应尽可能除去，任何附着物均应是牢靠的。

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Steel surface should be no visible oil, dirt, scale, rust and paint coating and other attached objects, the surface should be showed homogeneous metal color.

钢材表面应无可见的油脂、污垢、氧化皮、铁锈和油漆涂层等附着物，该表面应显示均匀的金属色泽。

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Steel surface should be no visible oil, dirt, scale, rust and paint coating attachments, any markings should be only slight discoloration of dot or stripes.

钢材表面应无可见的油脂、污垢、氧化皮、铁锈和油漆涂层附着物，任何残留痕迹应仅具点状或条纹状的轻微色斑。

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