I love researching welders. No less confusing than when I was looking at my tractor options. Lincoln Invertec 350 --Factory Tweco. As I review specs -"to me" it seems TWECO parts are integrated into many "TOP" products name brands. Upon further review, ESAB website tells me that they have the funding to support, #1, R&D, #2 support manufacturing. I too, wish ALL production/parts/engineering was USA/Canada, but I guess at the end of the day---I bought a Kubota BX, my opinion is not reality, the facts are.