The KNBT fibers with improved properties were fabricated via an extruding machine.

 
  • 通過(guò)擠制成型法成功制備了品質(zhì)優(yōu)良的KNBT纖維。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan