Strong will be exposed to the old แก่า water transport is winning sending tribute of the city since the reign of King Ramkhamhaeng's father because of the strong will of bamboo are lightweight and easy to transport, distance sight.
Education is the old container haulage terms of the delivery of tribute came from the King Ramkhamhaeng made of bamboo because teachers are lightweight, easy to transport long distances.
A vessel that is an old teacher carry water tribute of colony since overlap because ครุทำ from bamboo is light weight, convenient transportation, long distance.