- Sam Jin Machinery
- Hammer Grab,R.C.D (Reverse Circulation Drilling machine),Casing Oscillator,Power Pack,Casing & Casing Joint,Round Bucket,Auger.
- Address:Songjeong-dong,Songjeong-dong ,Gangseo-gu
- UBTECH
- Hydraulic Breakers, hydraulic hammer, Crusher, Shear, Pul Verizer, Scrap Grab, Stone Grab, Clam Shell Grab, Wood Grab, Compactor.
- Address:412-2 Sang-1dong Wonmi-Gu
1