切管机

telescopic pipe

vent pipe tile, quoin tile (corner tile), ridge tile, hip tile

jet-pipe distorsion, jet-nozzle distorsion, jet-propulsion plant

double pipe longitudinal finned exchanger

stainless steel pipe【材】;stainless steel tube【材】

drilling pipe, reeled

pipe-spill

Y-pipe【建】;Y-shape pipe【建】