Representative seal- It will be the stamp to be registered when registering the establishment of the company.
Ginko-in - This is a stamp that is registered when depositing important company assets in a bank.
Company seal - The most frequently used stamp, used for contracts and other documents issued by the company.
As for the material, I explained about the registered seal and the bank seal, but if you just talk about durability, titanium would be better, but I think that the frequency of using corporate seals will differ depending on the size of the company, so in such a case, I think black water buffalo and tsuji are enough.
Although it is not currently posted on the EC site, Inyusha also handles corporate seals, so if you have a request, please contact us from the site inquiry and we will respond as soon as possible.