The image on the projection screen should be a positive one; which would be in conformity with the measuring custom
The transmission illumin...

The movable length of the workpiece and the rotation angle on the projection screen can be digitally displayed
With a non-spherical collecto...

This instrument is in conformity with the design of update molding, compact in structures and beautiful in its outward appearances;
The high...

The product structures are strong in commonality, this instrument is beautiful in its outward appearances and convenient for operations;
Imp...