Material: API 5L GR. B, X42, X46, X52, X56, X60, X65, X70, X80 NACE MR0175/ISO 15156, NACE MR 0103 compliance Material: API 5L GR. B, X42, X46, X52, X56, X60, X65, X70, X80Size: 21.3~508mm Thk: 3.2mm~15.9mmHFW longitudinal weld pipeUP to 200,000 ton/yearNACE MR0175/ISO 15156, NACE MR 0103 compliance ERW Welded Pipes