Laser Slash rusty decorative corten metal letter box Australia Weathering steel also known as corten steel , is extensively used in yard screens, bridges, flower pots&planters,containers, facades, mailbox and letter box and sculptures with its long service, minimal maintenance Value and artistical patina. Corten metal plate (purple curtain wall steel https://designerletterboxes07409.blogkoo.com/the-smart-trick-of-letter-boxes-australia-that-nobody-is-discussing-47711674