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Precision Parallel Windows

BTMT can manufacture many difficult parallel windows of tight parallelism, tight dimension tolerance, high precision flatness and laser-grade surface quality. It is certain that all of our products are reliable because we have advanced inspecting-equipments, QA procedures and excellent operation process and high-tech staffs.
  • Material

    Crown, Flint, UVFS
  • Surface Quality

    10/5, 20/10(both sides)
  • Parallelism

  • Diameter Tolerance

  • Thickness Tolerance

  • Clear Aperture

    >90% of central diameter
  • Coating

  • Bevel


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