21)Technique: welded 2)Payment term:T/T L/C 3)FOB price: ... /t 4)Certificates:ISO 9001;2008 5)Length:2-12m Welded Steel Pipe Q195O.D19.5—630 mmW.T0.6-35 ... , API 5CT, CE, etc.Surface TreatmentsBlack Vanished, PP,PE,3PE,Galvanized etc.UsageConstruction, water heating, car manufacturing, electrical installation and mining ...