How to make PVC windows?

PVC window manufacturing simply described in short animation. 1. PVC profile cutting 2. Reinforced steel profile cutting 3. Screwing of reinforced steel to PVC profile 4. Hole drilling 5. Water slot drilling 6. Welding of PVC profile corners 7. Cleaning of PVC profile corners after welding 8. End milling 9. Glazing bead cutting 10. Windows hardware assembling 11. Glass assembling Window is ready!