metal octagonalring closure

例句：

1. 1.The metal octagonal ring closure was designed to secure the package securely.
   这个金属八角形环扣被设计用来安全地封存这个包裹。
2. 2. The manufacturer used a metal octagonal ring closure for its packaging.
   制造商使用金属八角形环扣来包装其产品。
3. 3. The metal octagonal ring closure is a popular choice for jewelry making.
   金属八角形环扣是珠宝制作中非常受欢迎的选择。