Greenhouse Galvanized Steel Pipe Standard: ASTM A53,BS1387,EN39 Size: 1/2"-8" Thickness:1.2-6.5mm Length:3-8meter Greenhouse Galvanized Steel PipeDiameter:DN15-DN200O.D:21.3-219.1mmWall Thickness:1.2-6.5mmLength:3 to 8 meterMaterial Grade:Q195,Q215,Q235,ST37,ST52Standard:GB/T3091,ASTM A53,BS1387,EN39Surface Treatment:Hot dipped galvanizedZinc Coating Content:250-400 g/m2Ends:Screwed both ends,one ...