[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.

[Features]· Widely-used general steel pipe for piping.· The white pipe is a black pipe that has been hot-dip galvanized on both the interior and exterior surfaces.