- Taeshin Heavy Ind. Cp., Ltd.
- Address:577-1,Dongpyeong-ri,Gunseo-myeon ,Okcheon-gun
- Kum Kang Precision Co
- Address:42-415,Ihyeon-dong ,Seo-gu
- www.dsgundrill.com
- Address:302,2ba, Sihwa Industrial Complex,2090-2, Jungwang-dong
- SUNGSHIM T&S
- Address:# 632, 6th floor, Ezen, Mechazone, E-1, Yangchonindustrial complex, Yangchon-myon
- ok rock drill
- Address:204-5, samjeong-dong, Ojeong-gu Bucheon-SI,
- DONGWOO MACHINERY CO., LTD.
- Address:Songsan
- Apex Construction Co., Ltd
- Address:2nd Floor, #468 Yatapdong, Bundanggu
- TASET Inc (Formerly Taesung Engineering)
- Address:326-152, Songjeong-ri, Mado-myeon
- Se Jong Enterprises
- Address:Karak-Dong
- ACE HEAVY MACHINERY CO., LTD
- Address:
- Daeho Industrial Packing Machine Co. , Ltd.
- Address:Rm No. Ba-3 2f, Yeongdungpo Yotong Center, 2ga Dangsan-Dong
- Hanjin Drilling Co., Ltd.
- Address:1612 Jidong 76 Soongin-Dong, Jongno-Gu
- Lantech
- Address:
- DKI
- Address:
- Dong Myung Topa Co.,Ltd
- Address:140-9 ,Gojan-dong ,Namdong-gu
- HANSUNG SPECIAL MACHINERY CO.LTD.
- Address:2181-7, 807ho-3ba, JEONGWANG-DONG,
- AHA Industrial Co.
- Address:121-ho, 10-dong, Tools B / D 289-1 Daehwa-dong
- NAM YANG Tech Co.Ltd.
- Address:woolim lions valley 2 309, gasan-dong
- Dream diamond tools.co
- Address:117 yulam ri paltan-myun
- SUHRYUNG MACHINERY CO LTD
- Address:102-8, bukjeong-dong,