The second, control of solid content of size can finely control size loading of strand, and then impregnability of strand is improved.

 
  • 浸潤劑固含量的控制也可以很好地控制原絲的含油率,從而改善原絲的浸透性;
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan