Ultrasonic welding. Sep 8, 9:30 pm. Camera 10.
The second welding machine running on its first night
What it shows: The second welding machine running on its first night shift, with carts of parts waiting beside it.
Why it proves the point: Camera 10 shows no welding on the Sep 7 night shift, so this is the first night shift with welding.
Video clip30 seconds
The second welding machine running at night beside carts of parts.