Machine parts are purchased from all over the world , some parts actually cross borders multiple times during production and may incur tariffs.

What he is saying is the US customers will be charged those tariffs as normal, but if a customer from the UK (or any country) buys the item the tariffs will be added as a pooled cost of production of those items sold in the USA .

Other countries will buy item at usual, price.

USA customers buy it at usual price, plus Trumps tariff, plus a portion of the pooled global increased production cost due to tariffs.

This is because outside the USA their global competitors, selling to France for example, will be mostly tariff free. Companies will need to do this in order to stay competitive with global companies that are producing and selling items, mostly tariff free, outside of the USA.

The data is wrong, it says tariffs to the USA, but over half, if not most of those countries do not apply tariffs on American goods.

This is just regurgitating Trumps press conference data that he likely pulled out of his diapers.

It isn't about development investment. It's about engines. Engines have long tail after sales profits from maintenance and parts. It's why Toyota recently unveiled their ammonia fueled engine and declared electric vehicles are dead. Electric engines remove a ton of after sales profits in the form of servicing, spare parts and upgrades.