材料经本机矫正后，光滑平顺无压痕，不损材料表面，适用各种金属板类。

After correction by the smooth, smooth without indentation, material surface, suitable for various metal plate.

youdao

材料经本机矫正后，光滑平顺无压痕，不损材料表面，适用各种金属板类。

After correction by the smooth, smooth without indentation, material surface, suitable for various metal plate.

youdao