... 23/24/25/26Seamless Cold-Drawn alloy steel tubeHeat Exchanger And Condenser TubesStainless Steel Pipes/TubesSize:(6-720mm)*(1-30mm)*( ... 310S,TP321,347H,2205,2507,904... 3. Application: petroleum,chemical industry,electric power,boiler,high temperature resistance... 4. Productions requirement:cold ... precision rolling. .. chrome moly alloy steel pipes for power generation industry and the petro-chemical ...