堺 佑助（sakai yuusuke) is registered brand of 左海金物産業株式会社.
The webshop called 堺屋(Sakaiya).
Originally Posted by daddy yo yo
hey guys... i know the website of ashi-hamono, but can someone please post sakai yusuke's website, if they have one?! and, even though it's OT, does yoshikane/yoshihide have a website?