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• OSAKA SEIKO, LIMITED.
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• SHIKOKU COMPANY, LTD.
• TAIYO KINZOKU SEISAKUSHO
• TOKUMARU YOUKOUSYO

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• MEIHAN GREEN SERVICE
• NICH CO., LTD.
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• NOMURA ENGINEERING CO., LTD.
• OSAKA MACHINE TOOL
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• TAISEI ENGINEER DENGYO
• TOMOSADA KENKI CORPORATION
• YAMAGUCHI MANUFACTORY CO., LTD.

• AQUATECH CO., LTD.
• CHUO ELECTRIC WORKS LTD.
• HYODA INSTRUMENTS CORPORATION.
• KANSAI SEIKI INDUSTRY
• KYOEI DIECASTING INC.
• SANYO CHEMICAL MACHINE WORKS LTD.
• TOMITA ENGINEERING CO., LTD.
• YAMABUN ELECTRONICS CO., LTD.

• KAMADA SIGNAL APPLIANCES CO., LTD.
• TACHII ELECTRIC WIRE CO., LTD.