Responsible for new product development and old product improvement, including valves, fittings and hydrants.

负责新产品开发以及老产品的改进，包括阀门、管件以及消防栓。

youdao

Responsible for new product development and old product improvement, including valves, fittings and hydrants.

负责新产品开发以及老产品的改进，包括阀门、管件以及消防栓。

youdao