又大又粗免费视频_成 人影片 免费视频观看大_狠狠做五月深爱婷婷伊人_全新av黄片在线播_国产午夜精品爆乳美女视频_久久成人三级精品_亚洲国产日本在线_亚洲欧美日韩ⅴ在线_日韩高清无码制服_四库影院永久国产精品

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...