Purchase Qty. Reference FOB Price
10-99 Pieces US$21.50
100-499 Pieces US$19.90
500+ Pieces US$17.80
Product Description
Scope of Application: Optical experiment, Physics teaching instrument, Physics experiment,Study the propagation path of light,Convergence of light, Light divergence, Refraction of light, Straight propagation of light, Pinhole imaging, Right-angle reflector experiment, Concave lens imaging, Convex ...