Cobalt glass plate--cobalt glass plate is a kind of observation lens, mainly for color filtering and ,chemistry cobalt glass
Filter glass--observing the color of the flame through the cobalt glass sheet can determine whether it contains ,,flame color reaction accessory
Cobalt glass--it is also used in many places in the industry, such as cement plants, steel plants, and industries,experiment cobalt plate
Experiment device--in the flame reaction experiment, the cobalt glass sheet can filter out the yellow light emitted by burning sodium ,labs experiment glass
Labs experiment tool--cobalt glass is a special glass made by adding " " in the production process,chemistry filter glass