| 摘要 |
A ratchet pipe wrench a C-shaped head including two jaws and a ratchet mechanism is received in the head so as to engage with a C-shaped engaging member rotatably engaged with the space between the two jaws of the head. A C-shaped positioning ring is securely engaged with a groove defined in an inside of the two jaws of the head so that only the engaging member is rotatable relative to the head.
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