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Due to the maintenance, we will close our website on June/19 9:00-10:00 and June/23 0:00-0:30 JST.
All customers cannot shop on our website during the time. Thank you.
Although it is the contact 1a1b, both contacts are off in the neutral position, but the contact b also does not conduct. In this case, the meaning of the b contact is not made at all. There is a lack of explanation in the description.