Home / Standards / GB/T 3478.2-1995 GB/T 3478.2-1995 Abolished Straight cylindrical involute splines--30° pressure angle dimensions tables 圆柱直齿渐开线花键 30°压力角 尺寸表 Standard Type GBT ICS N/A CCS J18 Status Abolished Issue Date 1995-07-12 Implementation 1996-05-01 Centralized Committee 国家标准委 Issuing Authority 国家标准委