Home / Standards / JB/T 7270.9-1994 JB/T 7270.9-1994 Abolished 单柄对重手柄 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1994-06-18 Implementation 1995-01-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部