Detailed Product Description Galvanized pipedescriptionO.D20-21.5 25-26.3 32-33.5 41-42.5 47-49 59-61 75-76 88-89 114 140 165 219DN15 20 25 32 40 50 60 80 100 125 150 200Wall thickness0.8-20mmMaterialQ195 Q215 Q235 Q345StandardGB/T3091-2008 BS1387-1985 ASTM A53TechniqueWelded, hot-rolled, cold-rolled, cold-drawn Surface treatmentgalvanizedgalvanizes steel pipe:OD20mm-219mmStandardASTM A53A, ...