Home / Standards / JB/T 6331.2-1992 JB/T 6331.2-1992 Abolished 铸造机械噪声的测定方法声压级测定 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1992-07-01 Implementation 1993-01-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部