欧美大片在线视频

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      Fiber Dyeing Process – Distribution Of Cotton
      Jul 14, 2018

      According to the maturity, color and working quality of cotton, the grade of cotton is divided into 7 grades, that is, grade 1~7, and grade 3 is better than grade 3 for the grade standard grade for cotton dyeing of cotton. Fiber dyeing should choose the moderate cotton value (maturity and fineness) of cotton, its fiber maturity is high, natural distortion is much, it is helpful to the mutual holding of fiber, so the strength, elasticity, uniform dyeing, relative yarn quality is good. The cotton fiber with low micron value is poor in maturity, easy to produce harmful defects and poor dyeing. Cotton blending should be avoided when mixed with cotton.

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      欧美大片在线视频
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