| Our Model J2507 Optical Bench is a kind of multiuse optical instrument. While optical | 
| experiments, such as doing research  in the law of image-formation, determing the  focal distance, this instrument can be used to support some necessary optical | 
| elements. It can also be used coordinately with a microscope or telescope to help | 
| students perform experiments in physics in groups. In order to meet different | 
| 
 requirements our factory produces the following types of optical benches. 
Double Track Diameter 16mm  | 
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