Which brand to choose for double flat wall steel-plastic composite drainage pipes?

The double flat-walled steel-plastic composite winding drainage pipe is made of preformed strips using polyethylene as the main raw material. The strips are wound on the pipe forming machine and welded into pipes. At the same time, the galvanized steel strips are embedded into the shaped steel strips. In the groove between the two strips, the steel strip is simultaneously covered with the third generation new steel-plastic drainage pipe to become the outer wall of the pipe. The double-flat-wall steel-plastic drainage pipe technical system has obtained a Chinese patent and passed the testing of the National Chemical Building Materials Testing Center.
For large-diameter pipes, taking into account manufacturing costs, transportation and installation savings, the comprehensive cost of double-flat-wall steel-plastic composite drainage pipe projects is lower than other types of pipes except cement pipes. Compared with cement pipes , because the inner wall of the plastic pipe is smooth and flat, the plastic pipe with the same diameter as the cement pipe can transport a larger medium flow (approximately). Therefore, the comprehensive cost of the double flat-wall steel-plastic composite drainage pipe is slightly lower than that of the cement pipe or the same as the cement pipe, but Lifespan is greatly extended.