ADJ externally molded onto the body to indicate the open end used for assembly.

(调整)模铸在阀体的外部，表示用于组装的开口端口。

youdao

ADJ externally molded onto the body to indicate the open end used for assembly.

(调整)模铸在阀体的外部，表示用于组装的开口端口。

youdao