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- First "FAQs"Please check.
- Please note that inquiries received on Saturdays, Sundays, holidays, year-end and New Year holidays, and summer holidays will be handled on the following business day.
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- If you do not receive any information from us, please contact us at:
OPTART Co., Ltd. Tokyo Head Office TEL: 03-5628-5116 / Kyushu Branch Office TEL: 092-437-5810
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