A new product, rotational flow-limiting valve installed in combined sewage intercepting chamber was introduced.

介绍了设置于合流制截流井中的一种新产品——旋流限流阀。

youdao

A new product, rotational flow-limiting valve installed in combined sewage intercepting chamber was introduced.

介绍了设置于合流制截流井中的一种新产品——旋流限流阀。

youdao