... ,Corner fitting1.Made of Q345B seamless welded steel tube, less solder sides, more firm; 2.Polished ... .Steel pillar1.Made of Q345B seamless welded steel tube, less solder sides, 2.first galvanized, then ... paints.Beam1.Made of Q345B seamless welded steel tube, less solder sides. 2.first galvanized, then ... much more.FAQ1.You are manufacture factory or trading company?A: We are manufacture factory. And you ...