Home / Standards / JB/T 7270.9-2014 JB/T 7270.9-2014 Abolished 单柄对重手柄 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 2014-07-14 Implementation 2014-11-01 Centralized Committee 工业和信息化部 Issuing Authority 工业和信息化部