产品外观：表面光滑，质地均匀，色泽光亮，无裂纹，黑点，和机械损伤的现象。

Product Appearance: the surface is smooth, texture is uniform, colour and lustre is bright, no crack, no dark spots, and no mechanical damage.

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肯德基门避免选购表面有开口气泡(白点)和灰渣(黑点)，以及裂纹、毛刺、起皮等明显缺陷的型材。

KFC opening the door to avoid the optional surface bubbles (white dots) and ash (black spots), as well as cracks, burrs, from obvious defects of the skin, such as profiles.

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