From 25-type gas stove to provide 980-degree heat, direct contact with the coal.

由25型热风炉提供980度高温烟气，与煤直接接触。

youdao

From 25-type gas stove to provide 980-degree heat, direct contact with the coal.

由25型热风炉提供980度高温烟气，与煤直接接触。

youdao