Grade:Gr2/Gr1/Gr7/Gr9/Gr12/Gr23Dimension Range:OD:3-100mm
WT:0.2-12mm
Length:10-6000mm
Standard: ASTM B337,ASTM B338, ASTM B861, ASTM B862
Certificate: ISO9001:2008, TUV, EN10204.3.1
Process:Purchase tube billets--Rolling tube--remove the oil--acid washing--annealed -- straighten-- surface
treatment--inspection--finished tube inspection.