Rubber casters,Light Duty Castor,Light Duty Chair Wheel,Pu Caster Wheel BENYU CASTERS & WHEELS CO.,LTD , https://www.benyucaster.com In the precision test of the factory, the detection of large-size samples is often encountered. The conventional method is to segment the detection on the universal tool microscope or projector. It is not economical or disadvantageous to process the sample plate to assist the measurement reference surface. Improve inspection accuracy and post-repair re-inspection when making samples. Let's take a large-scale model of our factory as an example to introduce a detection method that is simple, practical and accurate.