经理

Fresnel lens is widely used on projector.…

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Fresnel lenses consist of a series of concentric grooves etched into plastic.…

Pandas Optic can offer various ruby ball lens, and we can custom made ruby ball lens as you required.…

Sapphire/Ruby bearings are sliding bearings made of hard materials such as Sapphire. Synthetic gemstones (usually sapphire) are carefully ground to create a cone-shaped cavity that can be used as a bearing for the rotating shaft of a watch head or for other precision instruments.…