It is a 1 piece linerless closure with its sealing structure being integrated into the shell.

这是一种一片式无内垫瓶盖，其密封结构与瓶盖外壳紧密结合。

youdao

It is a 1 piece linerless closure with its sealing structure being integrated into the shell.

这是一种一片式无内垫瓶盖，其密封结构与瓶盖外壳紧密结合。

youdao