By adding molten iron scrap to enhance the chute and adjust the distance between the pipe mold, pipe mold reform and other measures will be laminated Dabao tube reduced the percentage of 0.68%.
通过在铁水中加入废钢，加强对溜槽与管模之间的距离调整，管模改造等措施将夹层打爆管所占比率降为0.68%。
By adding molten iron scrap to enhance the chute and adjust the distance between the pipe mold, pipe mold reform and other measures will be laminated Dabao tube reduced the percentage of 0.68%.
通过在铁水中加入废钢，加强对溜槽与管模之间的距离调整，管模改造等措施将夹层打爆管所占比率降为0.68%。
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