40/100/150 times concrete crack observation instrument with light source reading microscope belt scale magnifier
![40/100/150 times concrete crack observation instrument with light source reading microscope belt scale magnifier](http://ae01.alicdn.com/kf/H2fdc0add844a4af0a506494412e28a1bp/40-100-150-times-concrete-crack-observation-instrument-with-light-source-reading-microscope-belt-scale-magnifier.jpg_350x350.jpg)
sku: 4000688536757
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$33.95
Shipping from: China
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