Precision Parallel Windows - Windows & Mirrors - BTMT | Beijing Trans Manufacture and Trade Co., Ltd.

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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.

Specifications

Material
Crown, Flint, UVFS
Surface Quality
10/5, 20/10(both sides)
Parallelism
<1"
Diameter Tolerance
+0.00/-0.20mm
Thickness Tolerance
+/-0.05mm
Clear Aperture
>90% of central diameter
Coating
Optional
Bevel
0.3mmx45°

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