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1·Physical and mechanical properties of a plastic pirn are important indexes of its quality Characteristics.

塑料纬纱管物理力学性能是其质量特性的重要指标。

纬纱管

1·Physical and mechanical properties of a plastic pirn are important indexes of its quality Characteristics.

塑料纬纱管物理力学性能是其质量特性的重要指标。