How we did PCBs back in the '80s. That is, the nice ones, the presentable. For the rest, multiple passes with a permanent marker was enough.
No, China wasn't making them for us, they had just come out of their Cultural Revolution and had Deng Xiaoping applying his reform policies and trying to limit China's population growth with the "one-child-policy".
The only technological China we knew back then was Taiwan.
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