技术参数
1.用于内径尺寸测量 For inside measuring.
2.精密接长管可保证精度不受旋合力大小变化的影响 Precision rods can gurantee the accuracy of measurement be free of the influence of threads resultant of forces.
3.可根据用户要求提供各种尺寸的内径千分尺 Different sizes of internal micrometers can be supplied upon request of customers.
4.精度指标：按相应国家标准 Accuracy:According to China national standard.
