https://erwtubeline.en.made-in-china.com/product-group/codGFOSyGPpH/HG165-Tube-O-D-60-165mm-catalog-1.html
HG165 (Tube O.D. 60-165mm) - Hebei Tengtian Welded Pipe Equipment Manufacturing Co., Ltd. - page 1.
China HG165 (Tube O.D. 60-165mm) catalog of High-Performance Carbon Steel Pipe Welding Machine for Manufacturing, High-Performance ERW Steel Tube Production...