SL-PE the pipe is made of high density polyethylene (HDPE) and polypropylene (PP) production, pipe wrap strengthened frame tubes. This pipe thanks to the strengthening of the frame tube, at the same time saves material 60%, also enhances the ring stiffness of pipeline. Even larger diameter, able to bear the pressure of soil and traffic loads.

SL-CR the pipe is made of high density polyethylene (HDPE) as the main material, with reciprocating winding made of PE and high-strength steel to withstand internal pressure of 30 kg (or higher) of the pipe. Due to the wall wound steel wire, so internal pressure strength of greatly improving and pipe manufacturing costs lower. This pipe material costs are cheaper than direct extrusion production of plastic pipes above 50%, and socket connections, have great market potential.