Lesson Fifteen:Finisher Drawing, Roving and Spinning(并条、粗纱和细纱)Finisher DrawingSlivers from either the carding unit or the combing unit, depending on the ultimate yarn desired, are processed through th
Lesson Fifteen:Finisher Drawing, Roving and Spinning异丙醇钛(并条、粗纱和细纱)Finisher DrawingSlivers from either the carding unit or the combing unit, depending on the ultimate yarn desired, are processed throug