![]() Chicago Tube and Iron Chicago Tube and Iron (CTI) is a company operating as a specialty steel service center. | ![]() National Technologies National Technologies is a producer and supplier of precision machined components and assemblies for original equipment manufacturers. | |
Founding Date | Founding Date 1914 | Founding Date 1959 |
Type | Type Subsidiary | Type Private |
Tags | ||
Locations | Locations Romeoville, US HQ Monterrey, MX Ankeny, US Bedford Heights, US Eagan, US Fond Du Lac, US Indianapolis, US see more | Locations Oak Creek, US HQ |
Employees | Employees 251 | Employees 100 |

National Technologies is a producer and supplier of precision machined components and assemblies for original equipment manufacturers.
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