• 

  MHI Kobe Shipyard-Machinery Works

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  NIHON KOUKU DENSHI KOUGYOU

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  Obishi Keiki Seisakusho

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  TAKAHASHI KIKAI

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  YOSHIKAWA

• 

  ISHIKAWAJIMA-HARIMA

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  Daiichi Keiki

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  AKASHI-KIKAI INDUSTRY Co., Ltd.

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  ASAHI KEIKI CO.,LTD.

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  Asahi Kasei Co., Ltd.