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Company Profile
- Steffen Engineering & Testing, Inc.
- Country : United States
- City: Sioux City
- State: Iowa - IA
- Address: 611 Fifth St.
- Zipcode: 51101-1301
- Category: MANUFACTURERS: DISTRIBUTOR
- Description: Environmental Engineering Service
- Products: Engineers: Civil. Engineers: Environmental
- Employees: 6 - 19
- Year Established: 1994