日韩经典欧美综合_亚洲综合久久免费_欧洲女人性开放视频_一级a性色生活片毛片人和_风韵犹存岳厨房激情_日本黄色不卡高清一区二区三区_精品免费少妇日本_性导航福利污污_蜜桃蕾丝在线视频观看_先锋影音播放噜噜色资源

To provide the high conversion efficiency required by today’s industry. Our company specially designed for low-cost "Metro" type EDF as to provide a wide spectrum of spectrum, very suitable for ASE sources, the core components of the optical fiber series have been optimized, especially for deployment in high channels Count the EDFA in the DWDM system.