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The tube wall appears yellow and black when the ultraviolet germicidal lamp is used

by:LiangYueLiang     2020-03-11

in the production process of ultraviolet sterilization lamp, if the processes such as heating, baking and exhaust are not perfect, hydrogen will remain, and the combination and deterioration of residual hydrogen and Mercury will lead to blackening (Mainly the pipe wall turns yellow and black). If this situation is encountered when the new lamp is used, it is a bad lamp and cannot be used.

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