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quartz windows
quartz windows
Supplier Info
[China Supplier]
Contact Person : Mr. Zhao Wenli
Tel : 86-0431-89684446
Fax : 86-0431-89684445
Product Detail
1,Material: JGS1,JGS2,JGS3 2,Angle tolerance:5 arc sec to 3 arc min 3,Optical parallelism:10arc seconds to1 arc minut

quartz windows

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