The connecting pipe and the fixed sleeve pipe are fixedly connected mutually by a screw thread type or a clamping slot type.
接管和固定套管互以螺纹或卡槽式连接固定。
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 thread type and adjustable stop gauge ensure the accuracy and immobility of positioning.
螺纹式可调节挡料盘，定位准确，牢固；
Creative use "thread" type glass sealing hole instead of existing "straight pillar" and "steps" type glass sealing hole, the product compression resistance and leakage performance increase 1 times.
创造性的采用“螺纹型”玻璃封接孔代替现有的“直柱型”和“台阶型”玻璃封接孔，产品耐压和耐泄漏性能相应提高1倍。
Creative use "thread" type glass sealing hole instead of existing "straight pillar" and "steps" type glass sealing hole, the product compression resistance and leakage performance increase 1 times.
创造性的采用“螺纹型”玻璃封接孔代替现有的“直柱型”和“台阶型”玻璃封接孔，产品耐压和耐泄漏性能相应提高1倍。
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