I can't imagine that access to tapers will make any difference in the quality of rods being produced in asia. Even if they do use well established tapers, the people making the blanks have no idea what they're supposed to feel like when they're finished. Not to mention they probably won't be tempering the cane very well (if at all), they won't take care to avoid worm holes/grey nodes/weak cane, won't see a problem with glue lines/gaps, probably won't use any sort of node staggering, etc...