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By certification 
BDF Ballnut:
It is Double flange ballnut.
C7 Rolled and C3,C5 Ground Ballscrew are available.
The model for BSF series Ballscrew included:
1605 ,1610 ,2005 ,2010 ,
2505 ,2510 ,3205 ,3210
FBT Ballscrew Features:
1)High Reliability
2)High Precision
3)Smooth Movement
4)High Axial Stiffness
5)OEM/ODM Production.
It is Double flange ballnut.
C7 Rolled and C3,C5 Ground Ballscrew are available.
The model for BSF series Ballscrew included:
1605 ,1610 ,2005 ,2010 ,
2505 ,2510 ,3205 ,3210
FBT Ballscrew Features:
1)High Reliability
2)High Precision
3)Smooth Movement
4)High Axial Stiffness
5)OEM/ODM Production.
