Kev Qhia Ntawv Tshwj Xeeb Grating, 100 Kab

$Educational Diffraction Grating,100 Lines Featured Image$

$Educational Diffraction Grating,100 Lines$

E14.2412

Cov lus piav qhia luv luv:

Xa email rau peb

Khoom Nthuav dav

Cov khoom lag luam

100 Kab, Loj 50 * 50mm, Qhov rais 20 * 35mm

Yav dhau los: Grating, 600 Txoj Kab

Tom ntej: Stereoscopic Duab Loj, Teeb

Sau koj cov lus ntawm no thiab xa rau peb

Cov khoom pawg