Necessity of age-resistant in Spin Aprons.Throngh Scientific experiment a conclusion is made that seletion of Aprons with Age-resistant 998 A is a wise choice.

 
  • 阐述了纺纱胶圈使用防老剂的必要性,通过科学的试验对比表明,选用防老剂998A的胶圈,使用效果较好。
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