A tip part of the lock pin is provided with a section of external thread for screwing into the high polymer material column in the lock hole of the intramedullary nail and bone cortex.
锁钉尖端部分加工一段用于旋入髓内针锁孔中高分子材料柱体和骨皮质的外螺纹。
The mold material properties, types and characteristics are analyzed for a reasonable choice to improve lock sheet metal die life and reduce costs.
分析模具材料性能、种类及特性，从而合理选择模具材料，提高锁具钣金模具寿命，降低成本。
The mold material properties, types and characteristics are analyzed for a reasonable choice to improve lock sheet metal die life and reduce costs.
分析模具材料性能、种类及特性，从而合理选择模具材料，提高锁具钣金模具寿命，降低成本。
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