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- 화성 당성: 삼국시대 Hidden Gateway to China From a Military Strategic Site to a Gateway for International Exchange! for monitoring and defending maritime trade routes.......
- MANUAL DAMPER (Isolation Type) Isolation TypeThis type is used for two position such as Full Open and Full Close Function. CK/RCKThis damper is used for preventing a Back Air Flow in duct-line.
- CONTROL DAMPER (Isolation Type) Isolation TypeThis type is used for two position such as Full Open and Full Close Fuction. or customer request.BY/RBYGenerally Leakage Class Ⅱ, Ⅲ or Ⅳ is required for this damper in accordance