Object Screen for Optics Class_Class B 5 inch diameter artery cross sections 5 inch diameter artery cross sections reveals atherosclerosis Sectional 3D plant cell model exposes cell wall Cut out at one edge slips this 125 x 70 x 200mm matte white metal screen over a meter rule for vertical or horizontal positioning during optical bench image formation work
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Object Screen for Optics Class_Class B 5-inch diameter artery cross sections