... 3. Material:wrought iron Q235 steel design wrought iron window trellis Shijiazhuang billion industrial Co.,Ltd are manufacturer from shijiazhuang china ... *H mm)200*200cmSurface treatmentspray paint , sandblasting, anti-rust liquid,PVC Power Coated,U-V proof powder coating, , electro galvanized(zinc ... other port in China 2012 china manufacturer wrought iron window trellis design