| タイプ | Manufacturer |
|---|---|
| ウェブサイト | https://www.permco.com/ |
| 住所 | 1500 Frost Road P.O. Box 2068, Streetsboro, OH 44241 |
  |
The Perfection Machining Company was founded in 1964 to design and manufacture replacement parts for the mining industry. Renamed Permco 4 years later, the family-owned business developed a wide array of replacement hydraulic parts and eventually expanded its manufacturing capabilities to include cast iron parts and the resulting complete units.