hydrostatic pipe tester
pipe bending fatigue tester
branch pipe welded directly to the run pipe
copper pipe and aluminum pipe
pipe-in-pipe casing string
welding part of copper pipe and low corbon steel pipe
dwell-tester (cam angle tester)
(Slight) stretch pipe reducing mill
1Cr18Ni9T stainless steel pipe
1Cr18Ni9Ti heat exchange pipe