IZUSHI ＆ CO., LTD
King Lock Nut
https://www.ztec-izushi.co.jp/english/
Self-tightening nut that provides tight fastening with the aid of a unique screw thread
(https://www.diginfo.tv/v/PD-1003-en.php)
25/6/2014
DigInfo TV – https://www.diginfo.tv
Post time: Jun-14-2017