| 摘要 |
The invention relates to a roller wrench for nuts, comprising a housing as the main support, with at least one piston connecting opening, a synchronisation device, closing lids, power cylinders, a spring for exerting pressure on the cylinders and a connection screw between the cages, wherein the synchronisation device, along with the cylinders, exerts force on the bolts in order to secure same, with the advantage of being able to release them by means of the same synchronisation device housed in the nut actuating wrench that can be used hydraulically and manually.
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