GC Column
1) WEL Series : 경제적인 GC Column
2) WM Series : 고성능의 GC Column
| Item | USP | Similar Stationary Phase | |
| WEL-30 | WM-1 | G1,G2,G9 | DB-1, HP-1, OV-1, Rtx-1,SBP-1, CP-Sil 5CB |
| WEL-1 | WM-1MS | G1,G2,G9 | DB-1 MS, HP-1 MS, ZB-1 MS, OV-1 MS |
| WEL-52 | WM-5 | G27,G36 | BP-5, ZB-5, CP-Sil 8CB, DB-5, HP-5, SPB-5,Rtx-5, OV-5 |
| WEL-54 | WM-5MS | G27,G36 | ZB-5MS, DB-5MS, HP-5MS, OV-5 MS |
| WEL-1301 | WM-1301 | G43 | DB-1301, HP-1301, PE-1301, Rtx-1301 |
| WEL-624 | WM-624 | G46 | 007-624, AT-624, CP-624, DB-624, HP-624, Rtx-502.2, VOCOL |
| WEL-35 | WM-35 | G42 | DB-35, HP-35, SPB-35, Rtx-35, PE-35, AT-35 |
| WM-35MS | G42 | DB-35 MS, HP-35 MS, ZB-35 MS, OV-35 MS | |
| WEL-1701 | WM-1701 | G46 | BP-10, CB-1701, CP-Sil 19CB, DB-1701, Rtx-1701 |
| WEL-17 | WM-17 | G3 | DB-17, HP-17, HP-50, Rtx-50, AT-50, ZB-50, SPB-50, CP-Sil 24, SP-2250 |
| WEL-PEG20M | WM-InoWAX | G16 | CP-Wax, DB-Wax, HP-Innowax, PE-Wax, Rtx-Wax |
| WEL-FFAP | WM-FFAP | G25,G35 | BP-21, HP-FFAP, PE-FFAP, CP-FFAP, DB-FFAP, Nukol |