Home / Standards / JB/T 7512.2-1994 JB/T 7512.2-1994 Abolished 圆弧齿同步带传动 带轮 Standard Type JB ICS N/A CCS N/A Status Abolished Issue Date 1994-12-09 Implementation 1995-10-01 Centralized Committee 机械工业部 Issuing Authority 机械工业部