|  Our current PVC pipe series includes three types: PVC-U pipes ,  PVC-M pipes ,  and PVC-O pipes. Although there are slight differences in materials and manufacturing processes among them ,  they all share common characteristics such as being lightweight ,  corrosion-resistant ,  insulating ,  and pressure-resistant. Due to their easy installation ,  low cost ,  and long service life ,  PVC pipes have become a common choice in pipeline projects ,  especially for vari     |