Standard: API5L 1) Diameter (mm): 508-864 Wall thickness (mm): 6, 4-14, 3 Steel grade: A,B,X42,X46,X52,X56,X60,X65 2) Diameter (mm): 914-1016 Wall thickness (mm): 7, 9-14, 3 Steel grade: A,B,X42,X46,X52,X56,X60,X65 3) Diameter (mm): 813-1219 Wall thickness (mm): 9,5-20,0 Steel grade A,B,X42,X46,X52,X56,X60,X65, X70 4) Diameter (mm): 1219 Wall thickness (mm): 9,5-20,0 Steel grade A,B,X42,X46,X52,X56,X60,X65, X70 5) Diameter (mm): 1422 Wall thickness (mm): 11,0-22,0 Steel grade A,B,X42,X46,X52,X56,X60,X65, X70 Please do not hesitate to contact us in case of any questions. Regards, Nina Viter Sales Manager

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