12mm to 35mm high borosilicate optical glass convex lens diy concentrated light focusing projection convex lens Option=Φ23.8 H10.4 F14 mm
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12mm to 35mm high borosilicate optical glass convex lens diy concentrated light focusing projection convex lens Option=Φ23.8 H10.4 F14 mm
12mm to 35mm high borosilicate optical glass convex lens diy concentrated light focusing projection convex lens Option=Φ23.8 H10.4 F14 mm
Product Information
Product Information
Shipping & Returns
Shipping & Returns























