The make-up tong is placed on the top tool joint and the break-out tong is placed on the bottom tool joint.

外钳打在上边的接头上，内钳打在下边的接头上。

youdao

Install the make-up line (s) and snub line to the rig tongs. The snub line should be at least twice the size of the tong line.

装上大钳锚头绳和钳尾绳，钳尾绳的外径至少是大钳锚头绳的两倍。

youdao

Install the make-up line (s) and snub line to the rig tongs. The snub line should be at least twice the size of the tong line.

装上大钳锚头绳和钳尾绳，钳尾绳的外径至少是大钳锚头绳的两倍。

youdao