membrane-switch panel

How to make a membrane switch panel?
https://www.ixqprint.com
1.Heat shaping PET
2.Screen printing
3. Baking
4. Positioning hole
5. ICT test
6. Visual inspection of the switch circuitry
7. Cover with protective film/adhesive
8. Die cutting
9. Machine terminals
10. Put into housing
11. Insulation test
12. FT test
13.Attach a label
14.Appearance inspection
15. Switch panel packaging
16. Spot check
17. Product storage