I thought you might have mis-understood what I was saying, but I wasn't sure. I do agree that some products are better made and MAY withstand more neglect than others. That's why the are classified as commercial. :-)
I work on a lot of small engines, mostly dirtbikes, ATV's and riding mowers. There is a HUGE difference between the Chinese made engines and Japs, or even B&S. I can feel the sloppyness in the way the nuts&bolts fit together in Chinese stuff, whereas the others are machined to MUCH closer tolerances. I am in constant awareness of breaking off a bolt or stipping the threads.
Hank