ozone, The ultraviolet aging,Salt fog aging, Xenon lamp aging, Carbon arc lamp aging,Halogen lamp aging, Life expectancy;
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Product recall notification information update!
China's RoHS will be upgraded in an all-round way, and it is proposed to increase the requirements f
GB 40070-2021 hygienic requirements for myopia prevention and control of school supplies for childre
Spring tea meeting and award ceremony of "Guangdong energy standard testing" in 2022
Annex IV of the EU RoHS Directive intends to add 3 new exemptions