A further premium is also paid for the highest-quality air-dried staves (as opposed to kiln-dried) and expert cooperage.
更昂贵的支出来之风干的高品质的橡木桶和制桶专家的工钱。
cooperage:桶匠工作.工钱
cooper 制桶工人 | cooperage 桶匠工作.工钱 | cooperage 桶业