Details
A stp file exported from NX has a bad quality after importing it to Catia.
Solution
One of the possible options to correct a bad result and maybe leads to a better result is to export the step file from NX with B-spline tolerance value equal to 0.005 or lower.
Hardware/Software Configuration
Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: TRANSLATOR
Version: V12.0
Function: STEP_AP214
Ref: 002-8005544