- G-Dok Industries Co., Ltd.
- casters, wheels, footmaster, leveling casters, castors.
- Address:408-17, Hanjin-ri, Songak-myeon Dangjin-gun Chungcheongnam-do 348-823 Korea
- Keystone Castor Company
- 30mm Polypropylene Wheel. 30kg,100mm Fixed Castor-Polyurethane Tyre Whl-150kgKGDR-60S Footmaster Castor.
- Address:
- Daewon International
- casters, level adjust, leveling caster, footmaster.
- Address:#940-35, kunkun dong, Sangrok Ku, Ansan Gyeonggi-do 426-210 Korea
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