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•Steel type: angle steel or tubular steel
•Materials: Q235, Q345 (A36, A572 Gr.50) or others
•Appearance: hot-dip galvanized
•Shapes: round face/polygonal face
•Connection structure: overlap/flange connection
•Quality systems: ISO 9001:2008, ISO 14001:2004, OHSAS 18001:2007, GB/T19001-2008-ISO9001, GB/T 24001-2004-ISO, GB/T28001-2001
•Standards: GB/T2694-2010 or GB/T646-2006 or intentional
Galvanized  Lifespan: 30 years