要纺制高质量的氨纶包芯纱其操作方法也极为重要。

The operation method is also important to spinning corn-spun yarn of high quality polyurethane.

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但纯兔毛纱强力较小，可用涤丝包芯方式采加固。

But the tenacity of pure rabbit hair yarn is low.

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但纯兔毛纱强力较小，可用涤丝包芯方式采加固。

But the tenacity of pure rabbit hair yarn is low.

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