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Spot LOGO 6 inch 8 inch 12 inch finger ruler transparent orthopedic angle ruler set 5.0139,712 sold.7,524 so'm
Standard logarithmic near-use visual card plastic sealing presbyopic visual card double-sided visual standard thickened glasses store hot sale 5.08 sold.7,054 so'm
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Magnetic laser pointer optical splitter physical optical equipment light reflection strong laser pointer teacher pointer red and green light 5.0150 sold.37,617 so'm
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Magnetic Laser Pointer Teacher's Pointer Red and Green Light Splitter Physical Optics Equipment Light Reflection Intensity Laser Pointer 0.00 sold.90,750 so'm
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Reflection and refraction of light Experimental demonstrator Physical optical equipment Magnetic semi-circular glass brick Plane mirror 5.0147 sold.30,564 so'm
Pottery Painting Tools Round Card Round Equal Divide Blank Ruler Average Rounder Underglaze Painted Card Pad 0.0385 sold.37,617 so'm
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force synthesis decomposition demonstrator force synthesis and decomposition experiment middle school Senior high school physics mechanics experiment 0.02 sold.178,679 so'm