... safety set screw ==> 安全螺丝,安全止动螺钉 safety shear pin ==> 保险切断销 safety shield ==> 安全挡板 ...
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Safety Shear Pin Assembly 安全剪切销大会
shear pin safety joint 剪切销钉式安全接头
shear pin tubing safety joint 剪切销式油管安全接头
Safety y Shear Pin Assembly 安全剪切销大会
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。
The guide vane safety device include three kinds of structures, the destructive structure concerning shear pin and snap pin;
导叶安全保护装置主要包括：破坏性结构，剪断销、拉断销；
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