... 1.carbon steel Q235 2.zinc plated 3.usage:air Ventilation Air conditioner bracket, wall mounting Support Haiyan Hongtai Metal Products ... ,brass2) surface treatment: Zinc , powder coat, hot-dip galvanized3) machining Process: Stamping , turning,tube bending, welding, milling, CNC lathe…4) usage ... :86-13646737163Tel :86-0573-86887878 Fax :86-0573-86887758 Air conditioner bracket, wall mounting Support