对于工业蝶阀，法兰还是标准连接方式。

Flanges are also the standard connection for industrial butterfly type valves.

youdao

标准的法兰连接，通用性好。

With the NEMA standard flange connection, keep the good universal.

youdao

标准的法兰连接，通用性好。

With the NEMA standard flange connection, keep the good universal.

youdao