Manufacturing the hands concludes with coating the luminescent substance, followed by a visual check.
指针制作完成后，涂上一层夜光物质，然后进行外观检验。
2
As an adjacent top layer, a coating containing silica substance is used.
作为一个相邻的面层，含有硅涂层物质的使用。
3
It is mainly used in the thickness measurement of nonmetal coating mantled on metallic substance. At the same time the sensor can meet the high precision non-contact request in industrial measurement.