Iron Steel Tube20# Precision Seamless Steel Carbon Tube Outer 10 12 13 14 15 16 MM Inner Diameter 5 6 7 8 9 10mm hydraulic Pipe
https://www.vogueparade.com/shopping/EN/200282142/1/1005002374231439/iron-steel-tube20-precision-seamless-steel-carbon-tube-outer-10-12-13-14-15-16-mm-inner-diameter-5-6-7-8-9-10mm-hydraulic-pipe//