Components uniform is high quality seamless steel pipe as thecold shearing machine'stonnage is high, the cutting head ends'face is smooth and neat.
While due to poor machine and materials, thefake seamless steel pipes' cutting head face often have steel slag, which is uneven, and no metallic luster.
And because of the lackness of cutting machines' head, theinferior manufacturers products some pipes with no standard ends.
Hope these methods can help you~~