- 11
- 9月
Holographic diffraction grating for teaching 1.3 usd/pc 600 lines 300 lines 100 lines 50 lines in china
我们拥有中国最好的全息衍射光栅制造商
600 lines 300 lines 100 lines 50 lines for 1.3usd/pc
the size is 36mm x 38mm
我们拥有中国最好的全息衍射光栅制造商
600 lines 300 lines 100 lines 50 lines for 1.3usd/pc
the size is 36mm x 38mm