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mandrel
- 推力球轴承在工作中必须加以轴向预紧。
The thrust force ball bearing must perform in the work axial pre-tight. - 然后管材必需通过夹紧装置成轴向的转移.
Afterwards the pipes will have to be secured against axial displacement by means of a clamping device. - 采用液压夹紧，轴向定位，定位准确，夹紧可靠。
It adopts hydraulic pressure to clamp tightly, which is trustable and axial positioning, which is accurate.
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