Sea transport(port to port):The cheapest,volume unlimied.but long sailing time(15-30days).recommended for bulk cargo loose.
Air tranport(Airport to Airport):Fast(2-5days)sample packing,The most expensive,recommended for valuable cargo.
Express delivery(door to door):Fast (3-6days),door to door,wide-area coverage,The disadvantage is volume&weight,recommended for door for small cargo.