日韩在线中文字幕,人人干人人爽,伊人久操视频,亚洲aⅴ在线视频,成人午夜sm精品久久久久久久,网曝门精品视频学生在线,天天操天天操

What is the difference between a super five system and a super six system?

release:admin Browse:3859 times

The bandwidth of the super five classes is 100MHz; The bandwidth of six types of lines is 250MHz; Super five class wire gauge is 24AWG; The six types of wire gauge are 23AWG; Super five classes without skeleton; Six types of cables have a cross skeleton;