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188 Dougang mid-street, Fukou district, Nanjing, Jiangsu province,Nanjing,Jiangsu,China China
Material H-K9L(Borosilicate Crown Glass) Diameter Tolerance +0.0/-0.10mm(60mm)
Martial: H-K9L(Borosilicate Crown Glass) Diameter Tolerance: +0.0/-0.10mm(60mm)
Material H-K9L H-F2 Structure Air-spaced design Coating Multilayer Broadband coating
Diameter (mm) : 424/310/310 Clear Aperture (mm): 410/300/300
Material H-K9L Diameter Tolerance +0.0/-0.20mm Coating Aluminum Surface Accuracy 1/4--1/6 Surface Quality 40-20 scratch/dig
Material H-K9L Grade A Surface Quality 40-20 scratch & dig Surface Flatness /*@**********
Contact Person tina tian
Address 188 Dougang mid-street, Fukou district, Nanjing, Jiangsu province, Nanjing, Jiangsu
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