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Application filed by Hsien Chang Metals Co LtdfiledCriticalHsien Chang Metals Co Ltd
Priority to TW91202378UpriorityCriticalpatent/TW501690U/en
Publication of TW501690UpublicationCriticalpatent/TW501690U/en
Pressure reducing device, hot and cold water supply system using said pressure reducing device, and method of selecting the pressure reducing device used in said system