- KDA Corporation (Ceramic Factory)
- ceramic screws, ceramic fastners, ceramic bolt, nut, flat head, pan head, socket cap, zirconia, alumina, metric, unified,Ceramic.
- Address:4-13-6 Nakarokugo, Ohta-ku, TOKYO, Japan
- SAIMA CORP
- Security fasteners,Special Screw,Assembled screws,SUS310S Screws,SUS316L Screws,Titanium,NS,SH,Security Fastners.
- Address:2-9-17, Tsujido,
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