根据零件图试制双台肩钻具接头，对其进行上卸扣试验和水压密封测试。

We manufacture the tool joint, make the seal test and make-and-break test.

youdao

根据零件图试制双台肩钻具接头，对其进行上卸扣试验和水压密封测试。

We manufacture the tool joint, make the seal test and make-and-break test.

youdao