- GNC METAL
- Address:NO. 618 GWANYANGDONG 1597, DONG ANGU
- ROMA Steel co.,
- Address:A-1218, Twintower, 275-4, Yangjae-dong
- Baci Trading Co., Ltd
- Address:244-7,bugok-dong
- Steel Track Inc.
- Address:Hanil Town 129-2002, 881 Chowon-dong, Jangan-gu
- SSMCO(Summit Special Metal)
- Address:No. 203 Chaeil Bldg, Moradong Sasang-gu
- SNC CORP
- Address:woo man dong
- Dosko Ltd,.
- Address:605b-23, 1060-8, Singil-Dong, Danwon-Ku
- Gensea textiles group corp
- Address:sam woo b / d, 732-04
- DAEJI STEEL
- Address:RM904, SINDONGA O / T, 426-7, BUJUN-DONG, BUSANJIN-GU
- SEJUNG STEEL CO LTD
- Address:101Room, 32-9Block, Hyoja-Dong, Namgu,
- Hyundai C&S Co., Ltd
- Address:1277-13 Jungwang-Dong
- Juan Amt Co.,Ltd.
- Address:310,Chowonji-ri,Daegot-myeon ,Gimpo-si
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