Ellagitannin, the main tannin in oak, is an important factor influencing the quality of grape wine in oak barrel.
鞣花单宁是橡木中的主要单宁，是影响橡木桶贮葡萄酒质量的重要因素之一。
2
Our factory is located in Baiyun District of Guangzhou City, Guangdong, Main Jewelry box, wine barrel pot of tea, perspex products, cosmetics, such as a round box.
我厂位于广东广州市白云区，主营首饰圆盒、红酒罐茶叶筒、有机玻璃制品、化妆品圆盒等。
3
The lens barrel part is connected to a main body by a hinge unit so that it can be rotated with respect to the main body.