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Notice of System Maintenance for Our Contact Forms

Thank you for visiting our website.
We will be performing scheduled system maintenance for our online contact forms, including inquiry forms related to our company and products, during the period outlined below.
As a result, the contact forms will be temporarily unavailable.

We apologize for any inconvenience this may cause and appreciate your understanding and cooperation.

■ Maintenance Schedule
Sunday, May 17, 2026, 7:30 p.m. – 11:00 p.m. (UTC)

Please note that the schedule may change depending on the progress of the maintenance work.

연락처

영업시간 (한국시간) 09:00-17:00(토∙일 공휴일 제외)

한국닛또덴꼬

한국니토옵티칼(코레노)

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Notice
Here is the information at the release day. This information may be different from the information at other medias. Please be forewarned.