| No.
| Name
| Contract Date
| Product /
Kind of inspection
| Inspection equipments
| Contact
|
| Chager |
| 1 |
NK Co., Ltd. |
2004. 2. 1 |
Gas Cylinders
ype approval Inspection
/ Product Inspection |
Note "Inspection equipment list" on contract |
051-204-2211 |
| QM/General manager I. G. BANG |
| 2 |
Korea Institute of Machinery & Materials |
2004. 7. 5 |
Gas Cylinders
Sulfide stress cracking resistance inspection |
Note "approval letter" |
055-280-3642 |
| Researcher J. K. Yoon |