This is pretty normal in the electronics industry. From major suppliers, in the 90s we had 74hc logic which was just relabelled 74ls and some east German clone

This is pretty normal in the electronics industry. From major suppliers, in the 90s we had 74hc logic which was just relabelled 74ls and some east German clone z80s delivered as genuine zilog parts. You don't usually notice until something fails test or you get a high failure rate in the field. Comedy moment was the 1M resistors which were actually zero ohm shorts. If there is a dollar to be made...