3LPE Coating Line
| No. | Customer | Works | Pipe O.D | Length | Thickness | Completion |
| 1 | POHANG Iron Steel Service Co. Ltd. | SUNCHON KOREA | 400~1650 | 6,000∼18,000 | 6∼16 | 1988 |
| 2 | DAECHANG INDUSTIRAL Co. Ltd. | O-SAN KOREA | 400∼2400 | 6,000∼20,000 | 6∼22 | 1992 |
| 3 | DONG YANG Steel Pipe Co. Ltd. | INCHEON KOREA | 400∼1200 | 6,000∼20,000 | 6∼16 | 1990 |
| 4 | DAE SUNG Steel Pipe Co. Ltd. | CHUNG JU KOREA | 400∼2400 | 6,000∼20,000 | 6∼22 | 1996 |
| 5 | DONG YANG Steel Pipe Co. Ltd. | CHUN-AN KOREA | 400∼2600 | 6,000∼24,000 | 6∼25 | 1995 |
| 6 | DONG YANG Steel Pipe Co. Ltd. | CHUN-AN KOREA | 400∼1650 | 6,000∼20,000 | 6∼16 | 1995 |
| 7 | DONG YANG INDUSTRIAL Co. Ltd. | SHI-WHA KOREA | 400∼1200 | 6,000∼18,000 | 6∼16 | 1996 |
| 8 | MIJU Steel Pipe Co. Ltd | SUNCHON KOREA | 400∼2600 | 6,000∼22,000 | 6∼24 | 1997 |
| 9 | KOREA Casting Iron Pipe Co. Ltd SPM-3 Up-Grade. |
POHANG KOREA | 400∼2400 | 6,000∼18,000 | 6∼25 | 1999 |
| 10 | KOREA Casting Iron Pipe Co. Ltd SPM-3 Up-Grade. |
POHANG KOREA | 400∼3000 | 6,000∼18,000 | 6∼28 | 2000 |
| 11 | KOREA Casting Iron Pipe Co. Ltd SPM-1 Up-Grade. |
POHANG KOREA | 400∼1200 | 6,000∼18,000 | 6∼16 | 2002 |
| 12 | DONG YANG INDUSTRIAL Co. Ltd. | SHI-WHA KOREA | 400∼1200 | 6,000∼18,000 | 6∼16 | 2002 |
| 13 | MUNGJIN Pipe Co Ltd. SPM-1 Up-Grade. |
SUNCHUN KOREA | 400∼1800 | 6,000∼18,000 | 6∼16 | 2002 |
| 14 | MIJU Steel Pipe Co. Ltd SPM-3 Up-Grade. |
SUNCHUN KOREA | 400∼1650 | 6,000∼25,000 | 6∼25 | 2004 |
| 15 | KOREA CASTING Iron Pipe Co. Ltd SPM-1 Up-Grade. |
POHANG KOREA | 400∼1650 | 6,000∼50,000 | 6∼19 | 2004 |
| 16 | MIJU Steel Pipe Co. Ltd SPM-3 Up-Grade. |
SUNCHUN KOREA | 400∼2600 | 6,000∼25,000 | 6∼25 | 2005 |
| 17 | MIJU Steel Pipe Co. Ltd SPM-3 Up-Grade. |
SUNCHUN KOREA | 400∼2600 | 6,000∼25,000 | 6∼25 | 2005 |
| 18 | MIJU Steel Pipe Co. Ltd SPM-2 Up-Grade. |
SUNCHUN KOREA | 400∼1200 | 6,000∼18,000 | 6∼16 | 2006 |
| 19 | KOREA Casting Iron Pipe Co. Ltd SPM-1 Up-Grade. |
POHANG KOREA | 400∼3000 | 6,000∼50,000 | 6∼25 | 2006 |
| 20 | MIJU Steel Pipe Co. Ltd SPM-3 API-line Up-Grade. |
SUNCHUN KOREA | 400∼3000 | 6,000∼25,000 | 6∼25 | 2008 |
| 21 | MIJU Steel Pipe Co. Ltd SPM-3 API-line Up-Grade. |
SUNCHUN KOREA | 400∼1650 | 6,000∼18,000 | 6∼25 | 2008 |
| 22 | DONG YANG Steel Pipe API X70 grade up-grade. |
CHUN-AN KOREA | 400∼2600 | 6,000∼24,000 | 6∼25 | 2008 |
| 23 | KOREA Casting Iron Pipe Co. Ltd SPM-3 Up-Grade. |
POHANG KOREA | 400∼3000 | 6,000∼70,000 | 6∼25 | 2009 |
| 24 | SPP Pipe Co.Ltd SPM-1 Spiral pipe mill line. |
SUNCHUN KOREA | 400∼3000 | 6,000∼18,000 | 6∼25 | 2010 |
| 25 | SPP Pipe Co.Ltd SPM-2 Spiral pipe mill line. |
SUNCHUN KOREA | 400∼4000 | 6,000∼18,000 | 6∼25 | 2010 |