In this paper, the single shear substance testing device and relative testing method for large dimension shear pin were introduced.

介绍了轧机等大型关键设备所配备的大尺寸安全销实物单面剪切试验装置与试验方法。

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To overcome the shortcomings of the shear pin type joint and left-hand thread type joint, a sliding sleeve subsurface safety joint is developed.

为了克服剪钉式和反扣式两种安全接头的不足，研制出一种滑套式井下安全接头。

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To overcome the shortcomings of the shear pin type joint and left-hand thread type joint, a sliding sleeve subsurface safety joint is developed.

为了克服剪钉式和反扣式两种安全接头的不足，研制出一种滑套式井下安全接头。

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