Home / Standards / GB/T 3478.7-1995 GB/T 3478.7-1995 Abolished Straight cylindrical involute splines--37.5°pressure angle M and W values 圆柱直齿渐开线花键 37.5°压力角 M值和W值 Standard Type GBT ICS 21.120.30 CCS J18 Status 废止 Issue Date 1995-07-12 Implementation 1996-05-01 Responsible Dept 国家标准委 Drafting Unit N/A