Information

For Designing this model I have used the following steps:

Sketch:

1) rectangle

2) circle

3) Sketch Dimension 

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Solid:

Extrude: Distance: 40.00 mm, Toper angle: 2 deg

Model 2: after extrude

Final Model: selecting appearance: Modify->Appearance

 Final Model: Change from Design to Render 

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Sketch 

Model 1