a. Made of wrought iron b.CO2 arc welding assembly c. Hot-dip galvanization, then powder coating a. Made of wrought ironb.CO2 arc welding assembly c. Hot-dip galvanization, then powder coatingd. Durability and security5. Easy to install, only need screw to fix it.6. MOQ:30 pcs7. Package: air bubble plastic & pallet Window Covering