- Trading button company
- Button blank.
- Address:Lotte @ 110dong 1204ho
- Metro Driltech International Inc.
- Dth Hammers, Button Bits,drilling equipment.
- Address:
- Daegun Construction and Service Co., Ltd
- Integral Drill steel,Taper Rod,Button Bit,MF-rod,Shank Adapter.
- Address:Rm924, Opus1 Building, # 611-26,
- O-Ryung Ind Co.,Ltd.
- PTC Starter Switch,Centrifugal Switch,Motor Brush Holder,Push Button Switch.
- Address:517-30,Hoedong-dong ,Geumjeong-gu
- Micronic Korea Co.,Ltd
- Emergency Call Button,Operation Panel,Key Tag,Chime Indicator,Key Rack,Central Indicator Panel.
- Address:642-6 Yeoksam-dong,Yeoksam-dong ,Gangnam-gu
- ewon industry
- Button,Buttons & Buckles.
- Address:31-4, Yangpyoung4, Youngdeungpo-gu