3LPE Coating Line
| No. | Customer | Machine specification | Qty | Completion | Re-Marks |
| 1 | DONG YANG Steel Pipe Co. Ltd. Korea. | Ø400mm∼Ø1200mm x12m Upgrade pipe diameter |
1 set | 1991 | |
| 2 | DAECHANG INDUSTIRAL Co. Ltd. Korea. | Ø400mm∼Ø2800mm x 6m Pressure: 35kg/㎠ |
1 set | 1993 | |
| 3 | DONG YANG Steel Pipe Co. Ltd. Korea. | Ø400mm∼Ø2000mm x 6/12m Pressure : 35kg/㎠ |
1 set | 1996 | |
| 4 | MIJU Steel Pipe Co. Ltd. Korea. | Ø400mm∼Ø2800mm x 6/12m Pressure: 35kg/㎠ |
1 set | 1997 | |
| 5 | DONG YANG Steel Pipe Korea | Ø400mm∼Ø2600mm x 6/12m Pressure: 300kg/㎠ |
1 set | 2009 |