ERW steel pipe and seamless steel pipe is the biggest difference between ERW weld, which is the key to the quality of ERW steel pipe. Modern ERW steel pipe production process and equipment, due to the international community, especially the United States and other years of unremitting efforts, making the seamless steel pipe ERW has been more satisfied with the solution. Some people are ERW steel pipe seamlessly divided into geometrically seamless and physical seamless. Geometric seamless is to remove ERW steel pipe inside and outside the burr. As the structure of the inner burr removal system and the continuous improvement and improvement of the tool, the removal of the burrs in the large and medium diameter pipes has been well handled.