| Jenis | Manufacturer |
|---|---|
| LamanWeb | https://www.rotek.com/ |
| Nombor telefon | 781-899-4611 |
| Alamat | 390 Main Street P.O. Box 540504 Waltham, MA 02452 |
Rotek Instrument Corp. manufactures and services a complete line of precision calibration standards for voltage current resistance power and energy.