How much is the black plating reliability in a high humidity environment?

"It was confirmed by a temperature and humidity cycle test. Condition is “95% humidity, room temperature → 60℃ Heat-up time 4h → 60℃ Retention time 8h → 30℃ Cooling time 4h→ 30℃ Retention time 21h → 20℃ Cooling time 1h → 20℃ Retention time 4h → 30℃ Heat-up time 1h→ 30℃ Retention time 5h”.

In black plating series (SUGO-KURO, Tough black, Crystal black), we confirmed that there is no change in the low-reflectivity and appearance."

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