21)Technique: welded 2)Payment term:T/T L/C 3)FOB price: ... Certificates:ISO 9001;2008 5)Length:2-12m ASTM Black Steel PipeO.D19—630 mmW.T0.6-35 mmO.D tolerance ... , API 5CT, CE, etc.Surface TreatmentsBlack Vanished, PP,PE,3PE,Galvanized etc.UsageConstruction, water heating, car manufacturing, electrical installation and mining ... : FOB/CIF/CFRMOQ: 22 tonsDelivery time: 10 to 40 days Welded Black Steel Pipe