ISO3183 L415Q/X60Q PSL2 LSAW pipeline is a kind of industrial petroleum pipe, because of its good chemical properties, ISO3183 L415Q/X60Q PSL2 LSAW pipeline is widely used in land and sea oil, natural gas, liquid coal and other long-distance pipeline.
20Cr hot rolled and forged round bar is belong to Low harden ability carburizing steel under the standard of GB/T 3077-1999. 20Cr hot rolled and forged round bar has better weldability.Compared with 15 Cr hot rolled and forged round bar,it has higher
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