使用AISI 4145 H合金钢制造。方钻杆的末端和驱动截面和接头都符合API规范。

Kellies are made of AISI4145H alloy steel. The ends, driving sections and joints are produced and tested according to API specification.

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目的：探讨大鼠l5神经根受压后，益气化瘀方在神经再生修复过程中对神经肌肉接头部神经元的作用和表现。

AIM: To study the effect of Yiqi Huayu Fang on neurons at neuromuscular junctions during regeneration and repair of nerve after L5 nerve root compressed in rats.

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光缆接头筒外形是椭圆型直立式结构设计，筒和底座采用抱箍锁紧固定密封，安装十分方便。

Dome is a vertical type. hoop is used to fix and seal fosc cover and base, and its installation is quite simple.

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