Sea-air service combines the best qualities of both worlds: it is cost effective like that of sea freight, while still enjoy decent transition time like that air freight.
There are 2 major hubs for sea-air services.
DUBAI
For shipments to that of European nation
It takes about 14 days from Taiwan to Dubai, and it takes another 2 - 3 days from there to your destination of choice.
MIAMI
For shipments to that of central/south Americas.
It takes about 26 days from Taiwan to Miami, then another addition of 3 - 4 day to your destination of choice.