
Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
出版:American Society for Testing and Materials

專家解讀視頻
Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
出版:American Society for Testing and Materials
專家解讀視頻