You assume that ChinFatCo uses the same alloy and casting/machining tolerances as OEM . . .
That has *GOT* to be one of the funnoest and most absurd claims I have heard in years! Pure comedy gold!
By "pot metal" I was referring to whatever crap they can mix and melt today to sell some garbage parts . . . tomorrows batch may well be different . . .
Glad it brought you some pleasure
Actually you are not as far off as you think.
The composition of die cast white metals changes so fast that no 2 items are exactly the same.
Thus you toss what is also incorrectly called hardeners in at regular intervals to keep the metal within specifications.
The days of tossing a pile of scrap into the pot & hoping went out with hand ladeling , a process that you will only find in third world countries in back yard foundries .
And the equipment is usually sent there as "foreign aid" by countries like the USA & Australia after it had become totally uneconomic for local use.
There are no such machines in China and funny enough, never have been .
They are now the world leaders in both high volume & high precision die casting and have sent a lot of German foundries to the wall .
Not only that they are world leaders in making the casting machines , dies and design of both .
Modern high speed machines are very fussy about metal quality and temperature so the melt will always be good.
China is building a new foundry every 2 months so they are all brand spanking new .
The USA has only built 1 new foundry in the past 20 years and that is the GM foundry which was built with a "loan" from the Obama government which was commissioned in 2016 and is now in full production.
So the quality of the castings will be beyond doubt.
The quality of the assembly is another question all together .
Most of the cube carbs are totally machine built so if Miss Woo has put the right parts into the hopper then good carbs come out .
However I was not meaning to argue about quality or otherwise it was the degerogatory use of the term "Pot Metal " that needs correcting .
The range of alloys used for casting carburettors has not really changed much since the 50's apart from the fact that spectrochemistry has allowed far greater control over the specifications and in particular trace impurities that when my hand was signing the certificates were either listed as "trace impurities < 0.5 % " or ignored by typing "balance zinc ".
And we shipped thousands of tons of die cast zinc secondary foundry ingots to the USA every month .
As for the quality of Chinese carbs in general, most are better than what is made in the USA .
Where things get murky is the REJECTED ones that get sold ex-factory as defects at a knock dow rate then magically resold as OEM parts usually by an online vendor with a cyber shop.