小明成人永久免费视频在线观看,日韩欧美一二区在线精品,亚洲国产综合精品另类一区,欧美大香线蕉线伊人久久

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...