Main client |
- JFE Steel Corporation East Japan Steel Works Keihin area
- JFE Steel Corporation East Japan Works Chiba District
- JFE Steel Corporation West Japan Works Fukuyama area
- JFE Steel Corporation West Japan Works Kurashiki District
- Nippon Steel Sumikin Co., Ltd. Yawata Works
- Nippon Steel Sumikin Co., Ltd. Oita Works
- Nippon Steel Sumikin Kimitsu Works
- Nippon Steel Sumikin Co., Ltd. Kashimaya Works
- Nippon Steel Sumikin Co., Ltd. Nagoya Works
- Nippon Steel Sumikin Co., Ltd. Wakayama Steel Works
- Kobe Steel Ltd. Kakogawa Works
- Mitsui Miike Manufacturing Co., Ltd.
- Furukawa Industrial Machinery Systems Co., Ltd.
- Ishikawajima Transport Machinery Co., Ltd.
- Shinko Engineering & Maintenance Co., Ltd.
- Mitsubishi Chemical Corporation Sakaide office
- Taiheiyo Cement Co., Ltd. Oita Factory
- Sumitomo Heavy Industries, Ltd.
- Bridgestone EMK
- Bridgestone Chemical Products West Japan Co., Ltd.
- Yamauku Corporation
- Hitachi Zosen Corporation
- Tosoh Corporation
- Hamada Heavy Industries, Ltd.
- Nittetsu Mining Co., Ltd. Toridamayama Mining Co., Ltd.
- Mitsubishi Heavy Industries, Ltd. Hiroshima Manufacturing Co., Ltd.
- Ube Industries Machinery Co., Ltd.
- Shinko Corporation
- Special electrode Co., Ltd.
- Osaka Fuji Kogyo Co., Ltd.
- Nikko Sangyo Co., Ltd.
- Hashimoto Kogyo Co., Ltd.
- Yosai Co., Ltd.
- Kyushu Co., Ltd.
- The Chugoku Electric Power Co., Inc.
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