... 25mm 3 length:1-20m 4 contact: irene spiral steel pipeProduct nameSpiral Steel PipeOut diameter165-3048, 6 1/2"-120"Wall ... .Quality gradeFirst class, prime, newly produced, secondary , stock etc.Material/steel gradeA25, A25P, A, B, X42, X46, X52, X56, X60, ... STPG410 etc.EndPlain end, beveled, cut square, grooved, threaded and coupling, etc.FinishBare, varnished, zinc coating, anti-corrosion, 3PE/PP/EP ...