Metro Machine Works INC
11977 Harrison, Romulus, MI 48174
Operating signal within 12 months from two or more independent sources.
What they make
Aircraft Engine and Engine Parts Manufacturing336412Metro Machine Works is a precision machining company that manufactures gas turbine components including honeycomb air seals and shrouds for marine, land-based, and aerospace applications. The company machines materials including low carbon steels and exotic superalloys such as nickel and cobalt-based alloys like Haynes, Waspaloy, and Inconel. It serves the Aerospace, Defense, and Energy industries and maintains in-house machining and inspection capabilities along with process and tooling engineering.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Integrated Deicing Services | Detroit | Other Aircraft Parts and Auxiliary Equipment Manufacturing 336413 | UNVERIFIED | 2.4 KM |
| Dolphin Manufacturing, INC | Taylor | Machine Shops 332710 | ACTIVE | 3.6 KM |
| Onodi Tool & Engineering CO | Melvindale | Machine Shops 332710 | ACTIVE | 12.9 KM |
| Steel Tool & Engineering CO | Brownstown Twp | Aircraft Engine and Engine Parts Manufacturing 336412 | LIKELY ACTIVE | 14.9 KM |
| Hps Fabrications INC | Wyandotte | Plate Work Manufacturing 332313 | ACTIVE | 12.7 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 8 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
EPA cross-references this facility in NPDES · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | OCT 2025 | OCT 2025 |
| EPA FRS | EXISTENCE | SEP 2022 | SEP 2022 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| ADDRESS LINE1 | SAM GOV | OCT 2025 |
| CAGE CODE | SAM GOV | OCT 2025 |
| CITY | EPA FRS | JUL 2026 |
| CITY | SAM GOV | OCT 2025 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| NAME | SAM GOV | OCT 2025 |
| REGISTRATION EXPIRATION | SAM GOV | OCT 2025 |
| STATE | EPA FRS | JUL 2026 |
| STATE | SAM GOV | OCT 2025 |
| WEBSITE | SAM GOV | OCT 2025 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.


