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EN 10217 EN10224 ASTM A53 S235 Hot Rolled ERW Line Pipe API 5L /ASTM A53/ERW /HFW/HFI Steel Pipe Standards: BS EN 10219, EN 10217, EN10224, ASTM A53, A106, API, JIS G3444, and GB/T3091, GB/T9711 Steel ...