อ้างอิงกระทู้ (Quote Tpoic ID) 20182 โพสแล้ว (By) cellular :
"The structure of the totora is cellular. It's a very hearty, stable material that's also flexible but prevents kinking," explained Vranich. "People often used to make skis with just a single piece of wood. Nowadays, they replicate the interior form of a cross-section of totora."