The method needs fewer control component and has lower fault rate, can save energy and cut galvanizing cost down.

所需控制元件少，故障率低。可大大节约能源，降低镀锌成本。

youdao

The method needs fewer control component and has lower fault rate, can save energy and cut galvanizing cost down.

所需控制元件少，故障率低。可大大节约能源，降低镀锌成本。

youdao