Rigid pipes, not of metal, for building; drainpipe for building (not of metal); plastic conduits for irrigation; chimney pots, not of metal; plastic conduits for drainage and irrigation; plastic conduits for drainage; gas pipes(not of metal); rigid underdrainage pipes, not of metal; rigid pipes (not of metal); gutter pipes, not of metal; non-metallic drainage pipes; water-pipes, not of metal; penstock pipes, not of metal; sewer pipes, not of metal; plastic gutter pipes; plastic pipes for plum...