The material of fake and shoddy posted sides seamless steel pipe always has impurity in it. The density of the steel is smaller and has very serious dimension deviate. So, even without vernier caliper, we can still check their weight. Generally speaking, full carload lot weighing has better effect.

The brand and the lettering of the high quality seamless steel pipe is very regular.

On the big screw thread seamless steel pipe whose diameter is over 16’, the space between two brands is over 1 meter.

The vertical muscle of the fake and shoddy posted sides seamless steel pipe is always undulated.

The manufacturer has no travelling crane, so the package of the fake and shoddy posted sides seamless steel pipe is very loose, and the side is elliptical.