I've been in the auto equipment business for 12 years now (still wet behind the ears). ALL of your name brands Coats, Corghi, Hunter, etc still build a quality machine, BUT to compete in the "Race to the Bottom", they have ALL come out with a reduced cost machine. Chinese built, either partially or totally, looks like a tire changer and acts like a tire changer IF your tire isn't any tougher than your trailer tire. If you are changing a low profile tire good luck.
The Race to the Bottom is nothing new and has been happening for a while now and in all segments of industry. Hershey's makes chocolate in Mexico now, Oreo's are Mexican made also. If I won't pay the price for quality I won't get quality. If someone builds crap, and I refuse to buy it, and it rots on the sales floor the consumer can win, but The Race is way ahead of us and I don't know if we can change it.
When you buy a Chinese tire changer and it doesn't matter whose name is on it, when it breaks you throw it in the dumpster. 6 months after the sale, you got screwed. 2 years after the sale not bad. 3 or more years after the sale-you hit a home run. You buy a cheap machine, you get a cheap machine. Parts are often unobtanium, and not necessarily standardized. It's a real mess. I'm sure this is not exclusive to this industry.
I've serviced tire changers at a local Camping world and you could build a teardrop from what's thrown in the dumpster every night, it's a scroungers paradise if it wasn't faulty.
Les