真人插B免费视频播放,国产日本车视频大全网站,俄罗斯女人与性动交,国产最新分类视频青娱乐,青青草国产网友直播视频,国产精品区在线播放vr,日韩黄色片在线观看,亚洲 欧美 综合,午夜在线情欲都市五月天,免费看一级特黄视频

Hydrochromic Ink

2020-09-28

With white color in appearance, will turn transparent when it is soaked, then recover white color without water. Basic information:Appearance color: whiteChange color: transparentStorage: It should be sealed in a shady place.Ink T...

Thermochromic pigment

2020-09-28

The pigments are composed of micro-capsules that change color reversibly. When the temperature is raised to a specified temperature the pigment goes from colored to colorless (or from one color to another color). The color returns...

Photochromic pigment

2020-09-28

The pigment changes color when exposed to the sunlight or UV light, and revert to the original color when removed from the light. Color conversion: from colorless to colored, from one color to another color. Basic information:Part...

Thermochromic pigment

2020-09-28

The pigments are composed of micro-capsules that change color reversibly. When the temperature is raised to a specified temperature the pigment goes from colored to colorless (or from one color to another color). The color returns...

Photochromic pigment

2020-09-28

The pigment changes color when exposed to the sunlight or UV light, and revert to the original color when removed from the light. Color conversion: from colorless to colored, from one color to another color. Basic information:Part...

Hydrochromic Ink

2020-09-28

With white color in appearance, will turn transparent when it is soaked, then recover white color without water. Basic information:Appearance color: whiteChange color: transparentStorage: It should be sealed in a shady place.Ink T...