本发明的导卫装置其改进是扁钢导卫导向轮的外圆开制成1 - 3道环型圆弧凹槽。
Its guide apparatus features that the guide roller for rolling flat steel has 1-3 ring slots on its circumference.
本发明的导卫装置其改进是扁钢导卫导向轮的外圆开制成1 - 3道环型圆弧凹槽。
Its guide apparatus features that the guide roller for rolling flat steel has 1-3 ring slots on its circumference.
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