黄色的毛片免费,日本乱淫一区二区三区,爆操清纯美女,日本a在线看,国产黄色av免费,高柳の肉嫁动漫,久久综合88中文色鬼

首頁(yè) 產(chǎn)品 新聞 介紹 留言
 

供應(yīng)光學(xué)窗口

產(chǎn)品信息

產(chǎn)品詳細(xì)

Optical WindowsOptical windows are used for protecting fragile optical components inside an assembly. Substrate material is BK7, B270, Float Glass, Borosilicate, or UV Fused Silica. Specification: Material: BK7, UVFS, quartz, float glassDiameter: +0.0/-0.2Thickness: +/-0.1Parallelism: 1"Wavefront distortion: 1~5Surface Quality: 40/20Coating: Optional

聯(lián)系方式