| Company | Category | Area | Address | Web | E-mail | Contact person |
| DUFERCO INC | Steel-Distributors & Warehouse | Ohio | 4604 FAIRWAY DR, WINTERSVILLE, Jefferson, Ohio, 43953-3308, USA |
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| DUFERCO STEEL INC | Metals Service Center | Ohio | 4604 FAIRWAY DR, STEUBENVILLE, Jefferson, Ohio, 43953-3308, USA |
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William Hennen |
| DUFERCO STEEL INC | Metals Service Center | Ohio | 4604 FAIRWAY DR, STEUBENVILLE, Jefferson, Ohio, 43953-3308, USA |
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William Hennen |
| DUFF & SONS EXCAVTG & LANDSCPG | Excavating Contractors | Ohio | 20789 COUNTY ROAD 3, WARSAW, Coshocton, Ohio, 43844-9768, USA |
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| DUFF & SONS EXCAVTG & LANDSCPG | Excavating Contractors | Ohio | 20789 COUNTY ROAD 3, WARSAW, Coshocton, Ohio, 43844-9768, USA |
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| DUFF & SONS EXCVTG & LDSCPG | Excavation Contractor | Ohio | 20789 COUNTY ROAD 3, WARSAW, Coshocton, Ohio, 43844-9768, USA |
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| DUFF & SONS EXCVTG & LDSCPG | Excavation Contractor | Ohio | 20789 COUNTY ROAD 3, WARSAW, Coshocton, Ohio, 43844-9768, USA |
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| DUFF BROS REALTY CO INC | Remodeling Contractor For Sing | Ohio | 116 S BROAD ST, MIDDLETOWN, Butler, Ohio, 45044-4003, USA |
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Robert President |
| DUFF BROS REALTY CO INC | Remodeling Contractor For Sing | Ohio | 116 S BROAD ST, MIDDLETOWN, Butler, Ohio, 45044-4003, USA |
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Robert President |
| DUFF BROTHERS REALTY CO | Remodeling & Repairing Bldg Co | Ohio | 116 S BROAD ST, MIDDLETOWN, Butler, Ohio, 45044-4003, USA |
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Robert Duff |
