Metal Tube Threaded Tube M8 Hollow Threaded Tube Extended Outer Threaded Tube 1/8"1/4 1/2" 2" 3" 4" Double Thread Water Pipe
https://www.vogueparade.com/shopping/EN/200282142/1/1005003683557324/metal-tube-threaded-tube-m8-hollow-threaded-tube-extended-outer-threaded-tube-1814-12-2-3-4-double-thread-water-pipe//