普通型 半圆键
Woodruff keys-Normal form
检测标准
半圆键 键槽的剖面尺寸
Woodruff keyways
普通型 平键
Square and rectangular keys
螺纹千分尺
Serew thread micrometer
闭式单、双点压力机 精度
Straight sided single or two-point mechanical power pressesTesting of the accuracy
螺纹千分尺
Screw thread micrometer
锻压机械 精度检验通则
Test code of accuracy for metalforming machine
55°非密封管螺纹量规
Gauges for pipe threads with 55 degree thread angle Where pressure tight joints are not made on the threads
矩形花键量规
Gauges for straight-sided splines
分离机械噪声测试方法
Determination method of separation machinery noise
