Difference in quality in products made in China?

To humanity!

Goofyfoot- it's called an analogy. You said

Asians have a physiological advantage. Their hands and fingers are strong and nimble. Their bone structure is considerably different from that of people from European decent.

and

My logic and intuition tells me to believe professionals in the field with venerated standing and honorary credentials.

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I compared your first statement to statements made by others about so-called "physiological" (actually your example is anatomical)differences between different groups. The actually biological reality is that the intra-racial differences among humans are just as great as inter-racial differences.

With respect to your statement about people with venerated standings, how about all of the popes up until John 23rd, all of whom developed and/or explicitly endorsed the Church's teachings that all Jews were individually and collectively guilty for the crucifixion, and used that as a justification for antisemitism (best case) and genocide (worst case)!!! Silly me, I thought it was the Romans.

In other words, Goofy, KMA!!!!

To make a blanket statement that "Asians have a physiological advantage, their hands and fingers are strong and nimble" is absolutely ridiculous.
While I'm sure there are many Asians who have hands and fingers that are strong and nimble, I'm also sure there are many oafs, butterfingers and ham handed klutzes as well.
IMO: IF (and this is a huge IF) any Asian advantage actually exists it may be one of patience and persistence rather than specific physical traits. And I'm certainly not suggesting all "Asians" are patient or persistent either.

"Why are there so many Asians in western conservatories: because Asians have a physiological advantage. Their hands and fingers are strong and nimble. Their bone structure is considerably different from that of people from European decent. This advantage can carry over into the area of electronics. Look at some of the Japanese products from the 1960's and early 1970's."

Goofyfoot you might want to consider, along with those musical experts from conservatories that what make a muscician most proficient is what lays between the ears not some physiological advantage. Hand structure and size may help in easing facility but it doesn't compensate for the brain that sends the signals. I'm sorry, I totally disagree with your observation along with the "experts" you reference. And as Judge Judy is fond of saying, if it doesn't make sense it's not true. There are many examples of great musicians with large and small hands of I'm sure varying bone structure, lest we forget the concert pianist Alicia de Larrocha who at 4'7" in stature had large hands for her size but small hands by normal standards, not ideal for sure, how in the hell did she do it?

Good point Tubegroover. Good example was Beethoven. He was only 5'6" in height and had short but very strong finger's. His two top piano competitor's during the 1790's in Vienna were Hummel and Josef Wolffi and they both had very large hands and long finger's but were no match against Beethoven who never lost a piano competition in the palace's of Vienna between 1792 and 1798. Its all in the mind.