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
- JFE Shoji Corporation
- 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
- Shinko Corporation
- KOBELCO E&M Co., Ltd.
- Mitsui Miike Manufacturing Co., Ltd.
- Furukawa Industrial Machinery Systems Co., Ltd.
- Ishikawajima Transport Machinery Co., Ltd.
- Mitsubishi Chemical Corporation Sakaide office
- Taiheiyo Cement Co., Ltd. Oita Factory
- Sumitomo Heavy Industries, Ltd.
- Sankyu Inc.
- Tosoh Corporation
- Hamada Heavy Industries, Ltd.
- Nittetsu Mining Co., Ltd.
- UBE MACHINERY CORPORATION, Ltd.
- TOKUDEN CO., LTD.
- Osaka Fuji Corporation
- NIKKO SANGYO CO., LTD
- The Chugoku Electric Power Company, Incorporated
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