shuān pí lì / de / shù pí / hěn / hòu / jīng guò / jiā gōng / hòu / kě yǐ / zhì chéng / ruǎn mù / cái liào栓皮栎的树皮很厚,经过加工后可以制成软木材料。The bark of the Chinese cork oak is very thick and can be processed into cork material.