刮痕

cāo zuò tái de liè fèng hé guā hén li dōu huì cáng zhe xì jūn

操作台的裂缝和刮痕里都会藏着细菌。

Cracks and scratches in work surfaces can harbour germs.

wài guān biǎo miàn bù kě yǐ yǒu máo biān guā hén liú hén liàng hén suō shuǐ děng bù liáng xiàn xiàng

外观表面不可以有毛边、刮痕、流痕、亮痕、缩水等不良现象。

No burr, flash, scratch, flow mark, bright speck, shrinkage defects etc. on the surface of product.