With content of GCC increase, the paper strength increases, but whiteness and content of ash decreases.

  • 随着研磨碳酸钙含量提高, 卷烟纸强度性能提高, 但白度、灰分和透气度指标有所降低.

  • 互联网摘选 2025-01-18 15:47:26

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