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由美国Aetna—Standard工程公司开发的一种称为Accu—Roll新型无缝钢管轧机机组,不仅适用于中小型钢厂,而且一旦市场情况需要时,则可进一步扩大规模。该机组以综合工艺为基础,由一台普通型的二辊穿孔机和一台带限动芯棒和导盘的二辊斜
A new Accu-Roll seamless tube mill developed by Aetna-Standard Engineering of the United States is not only suitable for small and medium-sized mills but can be further expanded once the market conditions require it. The unit to the integrated process as the basis, from a common type of two-roll piercing machine and a mandrel with the limited movement and guide the two roller