- Ventus
- Address:jungang-dong
- Chiinfo Consulting Co., Ltd
- Address:Daemyung Dong
- GU OH PRESICION
- Address:203-2, bangsan-dong,
- Z A KOREA Co.
- Address:# 970-37 Wolchul-Dong, Buk-Gu
- JITOOL KOREA
- Address:32-7 Jik-dong
- Nitto Kohki-Mijin Co., Ltd
- Address:53-1, Jeil-Ri, Yangji-Myun
- ok rock drill
- Address:204-5, samjeong-dong, Ojeong-gu Bucheon-SI,
- Se Jong Enterprises
- Address:Karak-Dong
- DAEKYUNG
- Address:Sindorim-dong
- Namkyung Industry Co.,Ltd.
- Address:242,Yanggi-ri ,Gongdo-eup ,Anseong-si
- GB INDUSTRIES CO., LTD.
- Address:642-9, Gahyeon-Ri, Tongjin-Eup
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