- ALP Co., Ltd.
- Address:3-3-10, Midorigaoka, Hamura-Shi
- KOYO KASEI Corporation
- Address:2-509-1, Mihashi, Oomiyaku
- OSC - Ogawa Seiki Co., Ltd.
- Address:2-9, Okubo 2 Chome
- NOGAMIGIKEN CO LTD
- Address:1136-3 Izumi,
- DAIDO SANGYO CO.,LTD.
- Address:3-48-2, Minamiotsuka,
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