1, manufacturer of galvanized pipe 2, competitive price 3, all sizes 4, quality inspection Name: steel structure RHS hot dip galvanized pipeStandard: BS EN10219-2006, BS EN10296; ASTM A53, ASTM A500; GB/T 6728; JIS G3444-2006, JIS G3445-2006Material: Q195, Q215, Q235, Q345. ;A53 gr a/b; ss400SIZE: steel structure RHS hot dip galvanized pipe