Taiwan and China are always at rift with each other
because Taiwan always have been maintaining to be separate from
China and not as part of a unified china..
So therefore, there is a subtle humor in that pic.
Firstly, China being mass manufacturers of practically anything
due to the low cost of production and labor there..It kinda mocks
China as everything made in China even screws..
Secondly, the label "Screw Taiwan" practically means "Go Fuck
Yourself Taiwan" as screw has a different colloquialism with the
mainstream meaning... screw and screwdriver...
Master, a little bit wrong
the screw itself is made in Taiwan, therefore labelled as screw
(optional comma) taiwan
the picture by itself does not have any special meaning behind
it.
it is only when the appropriate title "Made in China" being
added by (someone), then the humourous meaning is carried out
