
However, for erw steel pipe units, the larger the diameter, the more limited the strip weight and wall thickness of the strip steel. The storage equipment is limited by the spiral looper. In addition, the erw steel pipe unit has a higher line speed and is buried. The arc welded pipe speed is generally 3m/min, which does not match each other. Therefore, erw steel pipe units need to fully utilize and expand their own advantages in order to improve product quality and develop new products.
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