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Dual Certified, Universal Choice – ASTM A53 / API 5L Grade B Sch40/Sch10 Carbon Steel ERW Welded Pipe

ERW (Electric Resistance Welded) pipe is manufactured by forming hot-rolled coils into shape and welding using high-frequency current. Our products simultaneously comply with ASTM A53 (General Piping Standard) and API 5L (Line Pipe Standard) Grade B requirements – the most widely used dual certification in the carbon steel welded pipe industry. From construction scaffolding to oil & gas transmission, from fire sprinkler systems to machinery manufacturing, this "dual-certified" welded pipe has become the preferred choice for engineering projects due to its stable quality and economic efficiency.

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