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Crane certifier's database
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| California accreditation number | 210 |
| Company | Gwin Industries |
| Licensee | Steve Gwin |
| Mailing address | 412 Deperu Drive Crockett, CA 94525 |
| Phone | (510)787-3135 |
| Fax | (510)787-3239 |
| Type of crane | Bridge & Gantry Mobile |
| gwinindustries@value.net | |
| Website |