午夜视频在线观看免费,人妻丰满熟妇AV无码区,天天日天天色,久久久久这里只有国产中文精品

產(chǎn)品用途:產(chǎn)品適用于煤礦井下無線電通訊設(shè)備和采用類似技術(shù)的電子裝置的有關(guān)無線電子設(shè)備中傳輸射頻信號。

Scope of application:The product is fit for the transmission of radio frequency signals in radio equipment or in electronic equipment adopting similar technologies.

執(zhí)行標準 Standards implemented: Q/3210HL32-2005