The import trade of artificial silk is revewed briefly, including the evolution of the imported volume, nationals and ports of artificial silk in the first part.

  • 然后分别论述了人造丝织品和人造丝交织品的进、出口贸易的发展,分析了进出口额变化的原因。

  • 互联网摘选 2025-01-19 22:16:22

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