Apple has already used it in the sim ejector tool, but I understand what you mean. They will use it at some point for frames and maybe batteries. They have spent a ton of money into R&D production technologies and continue to do so. It's just a matter of time.
But what is going to move the needle first is probably not Apple. Perhaps we will be producing the Tesla parts first. That might account for the one million dollars in raw material on order/inventory. This would prime the pump nicely for other contracts in the US.