色哟哟精品视频在线观看,麻豆成人久久精品二区三区免费,亚洲毛片无码不卡av在线播放

Shrinkage

Affected by foreign matter (such as oil, water, etc.) existing on the surface of...
More
Whitening, Whitish

During the coating process and just after the coating, the surface of the coatin...
More
Exposed Bottom, Bad Bottom Cover

The phenomenon that the coated surface is not painted due to missing coating is ...
More
Particles

The phenomenon in which the protrusions in the paint film are distributed in the...
More
Sagging

The paint applied on the vertical surface flows downward, causing uneven streaks...
More
Varnish spraying, what you must know

Automotive varnish is generally used in conjunction with one-component base pain...
More