- Daewon Machinery Co.,Ltd
- Address:665, NAJEON-RI, SANGLIM-MYEON
- KOMETECH Co., Ltd
- Address:# 909, Century Building, 55-1, Daeyeon3-dong, Namgu
- Sam Jung Special Metal Co., Ltd.
- Address:719-1,Hakjang-dong ,Sasang-gu
- JMP CORPORATION.
- Address:74-7 Samnak-Dong, Sasang-Gu
- KSN
- Address:Machine Store, Yangpyeong-dong 1-ga, Yeongdeungpo-gu,
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