... .2-1/2,3,4,5,6,7,8,9,10,11,12,14,16 4Thickness(mm):0.2- ... models and national standards of galvanized steel pipe b.Using high-quality material and advanced production technology ... and equipment for processing c.Applicable to a humid climate and the harsh ... specification as follows: ASTM A53 GRA/B, ASTM A106 GRA/B Out DiameterThickness WeightMMINmmmmKg/m151/221.32.771 ...