A new over-long pipe cold drawing mill with three pipes drawn simultaneously, which has an unique structure and a display device for drawing load, is described.

本文介绍了一种结构独特，可显示拔制负荷的新型超长三线冷拔机。

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Based on indoor drawing test with thread GFPSN and smooth surface GFPSN, the mechanical characteristics of GFPSN under drawing load are analyzed by taking mortar as the anchor body.

对螺纹状和光面两种不同表面特性的GFPSN进行了室内拉拔试验，以砂浆为锚固体，研究了室内拉拔试验中GFPSN承受拉拔荷载的力学特性。

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