成人观看免费观看视频,国产不卡视频在线播放,国产在线视欧美亚综合,中文字幕在线观看日韩,国产三级精品最新在线

1+4+1

  • Number of floors:6L
  • Order:1
  • Board thickness:0.8mm
  • Copper thickness:1oz
  • Surface treatment:ENIG+OSP
  • Line width and space:2.0mil/2.0mil
  • Application:E-book
  • Technical characteristics:Multi-layer heigh plus