FYI for anyone interested: PCBWay, PCBgogo & ALLPCB (last I checked a couple of years ago) sent their stuff to the same factory.
It's easy to test since they let you know exactly in which step the manufacturing is in. So you can order a fairly unique combination of solder mask color, board thickness, etc. and see that they all report the board is in the same step, down to the minute.
It's easy to test since they let you know exactly in which step the manufacturing is in. So you can order a fairly unique combination of solder mask color, board thickness, etc. and see that they all report the board is in the same step, down to the minute.