okay thats 2 examples, It would be helpful to actually start a thread documenting these items. Including the vendor.
But, there are decent quality parts that many people are happy with as well, So lets not throw the baby out with the bathwater. I have purchased parts and was disappointed, But I also purchased parts I was exceedingly happy with.
That includes parts made by folks in the UK as well. Casting a wide net that "All xxxxxx parts are rubbish" is about as useless as "All white people are..." or "All black people are....."
I am looking at a Ariel Red Hunter right now missing many parts, The leading gurus of the Ariel club have been pointing out viable parts sources and includes some parts made in India.
My neighbor, who is from Yorkshire, grew up in the apprentice trade and now runs a machine shop making aerospace components is what by any stretch is an expert on metallurgy, manufacturing and English motorbikes and cars. He has purchased a number of parts from India and Asia and rejects about 10% but marvels at the acceptable quality and low costs for what he has used.
I know most of the major US parts dealers, I am well aware of their challenges in importing and supplying the Vintage bike trade and speak to them often. We could rehash that, but would be far more useful to start a thread with actual components, vendor, and defect.