- Dong-A Electric Instrument Co
- electric conduit fittings,CAST IRON ELECTRICAL CONDUIT FITTING.
- Address:154-2, Yanggok-ri, Yangchon-myun
- Global Ductile Iron Pipe Co.,Ltd
- Ductile Iron Pipe, Ductile Iron Pipe Fittings, Grooved Fittings, Valves.
- Address:2302-101, dongwon apt, sasang
- Sam Yang Industrial Corporation
- Ductile Cast Iron Threaded Flanges,Universal Radiator Valve,Power Transmission Equip. Parts,Stamping,Knife Gate Valves and Components,Castings,Ductile Cast Iron Pipes,Stainless Steel Tubes,Ductile Cast Iron Fittings.
- Address:713, Hyundai Venture-vill, Suseo-dong, Gangnam-gu
1