- Free shipping
- 100 days returns
- Low prices
- 5 million products
70mm Diameter -150mm Focal Length Double Concave Lens Optical Glass Experiment Teaching Science K9 Processing Customization
Specifications:
- Usage: Optical
- Structure: Double Concave
- Shape: Spherical
- Model Number: Double Concave
- Material: Glass
- Free shipping
- 100 days returns
- Low prices
- 5 million products