In October 2011, the U.S. Department of the Treasury initiated an investigation into the countervailing case in accordance with the regulations of the British Steel Works, V&MStar, TMKIPSCO and the British Steel Workers Council. At that time, senior officials of the Ministry of Commerce of the People's Republic of China stated that they blindly followed the trend to accuse my country of countervailing or subsidies for imported goods, which lacked objective factual basis, and my country decisively resisted this matter.
①Main production process of hot-rolled seamless steel pipe (main inspection process):Tube billet preparation and inspection → tube billet heating → perforation → pipe rolling → steel pipe reheating → fixed (reduced) diameter → heat treatment △ → finished pipe straightening → finishing → inspection (
Thick-walled seamless pipes have been widely used in pipelines in recent years. In pipeline applications, due to the transportation of a large number of relatively high-viscosity liquids, its wear resistance is reflected. What are the characteristics of the wear resistance of the seam pipe?1. Wear r