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Changchun Bena Optical Products Co., Ltd
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  • “Product works well and had experienced no issues with the product.”
    Daniel D. Moatshe
    dj manufacturing
  • “Good service and communication.”
    Mr.flavia Spena
    Wisconsin Molding
  • “This product is a star. I am glad that I found this Optical Lens Ppt . I like it.”
    Charles Eveland
    "КИРОВСКАЯ КЕРАМИКА" АКЦИОНЕРНОЕ ОБЩЕСТВО
  • “The sample of Optical Lens Ppt is very nice, I will buy it soon.”
    Kingsley Ezidinma
    Industrial-Supply-Solutions-
  • “It’s my second time perchase. Optical Lens Ppt as expected. Thanks manufacturer!”
    Mr.jhani
    Cold Chai

Optical Lens Ppt

- manufacturer, factory, supplier from China

(Total 1 Products for Optical Lens Ppt)

  • Optical zoom lens for canon

    Optical zoom lens for canon

    • Brand: Bena
    • Packaging: Carton
    • Supply Ability: 80000000pcs/year
    • Min. Order: 10 Piece/Pieces

    Double-Concave (DCV) Lenses have two inward curved surfaces and a negative focal length. They are used for image reduction and to spread light. Double concave lens is similar to flat concave lens. The focal length is negative, but the light incident in parallel diverges outward. The curvature radii of the two sides of...

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